A Collection of Articles from , The Journal of The Institute of Navigation

Celestial Navigation

In Cooperation with the Foundation for the Promotion of the Art of Navigation

Title Author Issue 1 RESURRECTING THE ANALEMMA Samuel G. Shaw Vol. 49, No. 1, 2002 2 AUTHOR’S REPLY TO COMMENTS ON “THE CELESTIAL Arne B. Molander Vol. 46, No. 3, 1999 NAVIGATION OF CHRISTOPHER COLUMBUS” 3 COMMENTS ON “THE OF Keith A. Pickering Vol. 46, No. 3, 1999 CHRISTOPHER COLUMBUS” 4 THE CELESTIAL NAVIGATION OF CHRISTOPHER Arne B. Molander Vol. 44, No. 4, 1997 COLUMBUS 5 THE DIRECT FIX OF AND FROM Stanley W. Gery Vol. 44, No. 1, 1997 TWO OBSERVED ALTITUDES 6 LUNAR DISTANCE METHOD IN THE 19th CENTURY: Siebren Y. Van der Werf Vol. 44, No. 1, 1997 A SIMULATION OF J. SLOCUMS OBSERVATION 7 A NAVIGATION SOLUTION INVOLVING CHANGES TO George H. Kaplan Vol. 43, No. 4, 1996 COURSE AND SPEED 8 DETERMINING THE POSITION AND MOTION OF A VESSEL George H. Kaplan Vol. 42, No. 4, 1995 FROM CELESTIAL OBSERVATIONS 9 TEMPERATURE DEPENDENCE OF INDEX R. Egler Vol. 42, No. 3, 1995 ERROR 10 PRACTICAL SAILING FORMULAS FOR RHUMB-LINE George H. Kaplan Vol. 42, No. 2, 1995 TRACKS ON AN OBLATE EARTH 11 MINIMIZING ERRORS IN CELESTIAL POSITIONING Paul F. Ross Vol. 41, No. 3, 1994 12 WITH CELESTIAL ALGORITHMS Thomas R. Metcalf and Vol. 41, No. 2, 1994 Frederic T. Metcalf 13 CAPT. P. V. H. WEEMS AND THE TRANSITION FROM G. D. Dunlap Vol. 40, No. 1, 1993 MARINE TO AIR NAVIGATION 14 A SIMPLIFIED SIGHT REDUCTION METHOD FOR John D. Woodworth Vol. 39, No. 4, 1992 CELESTIAL NAVIGATION 15 AN EXTENSION TO THE OVERDETERMINED CELESTIAL Thomas R. Metcalf Vol. 39, No. 4, 1992 FIX 16 AN ANALYSIS OF ADMIRAL PEARY’S SLEDGING SPEEDS William E. Molett Vol. 39, No. 3, 1992 17 HISTORY OF AERIAL POLAR NAVIGATION Joseph N. Portney Vol. 39, No. 2, 1992 18 ADVANCING CELESTIAL CIRCLES OF POSITION Thomas R. Metcalf Vol. 38, No. 3, 1991 19 ON THE OVERDETERMINED CELESTIAL FIX Thomas R. Metcalf and Vol. 38, No. 1, 1991 Frederic T. Metcalf 20 ANALYSIS OF WHETHER PEARY EMPLOYED William E. Molett Vol. 37, No. 1, 1990 AMUNDSEN’S METHOD OF OBTAINING HEADING 21 COMMENTS ON COL. MOLETT’S ANALYSIS Thomas D. Davies Vol. 37, No. 1, 1990 22 OVERDETERMINED CELESTIAL FIX BY ITERATION Robert W. Severance Vol. 36, No. 4, 1989 23 ANALYSIS OF ADMIRAL PEARY’S TRIP TO THE NORTH William E. Molett Vol. 36, No. 2, 1989 POLE 24 SMOOTHING A NOON SIGHT Robert W. Severance Vol. 35, No. 2, 1988 25 THE WORLD’S FIRST Saul Moskowitz Vol. 34, No. 1, 1987 Title Author Issue 26 WHERE IN THE WORLD ARE WE? J. F. Roeber Vol. 33, No. 4, 1986 27 AUTONOMOUS SATELLITE NAVIGATION USING Robert L. White, Sam W. Vol. 32, No. 4, 1985 OBSERVATIONS OF STARLIGHT ATMOSPHERIC Thurman, Frank A. Barnes REFRACTION 28 POSITION FROM OBSERVATION OF A SINGLE BODY James N. Wilson Vol. 32, No. 1, 1985 29 MATHEMATICAL 3-ARM PROTRACTOR W. B. Ruhnow Vol. 31, No. 1, 1984 30 ACCURACY: WHAT IS IT? WHY DO I NEED IT?HOW MUCH J. F. Roeber Vol. 30, No. 2, 1983 DO I NEED? 31 THE WIND AND CURRENT CHART SERIES PRODUCED BY Marc I. Pinsel Vol. 28, No. 2, 1981 MATTHEW FONTAINE MAURY 32 A HANDHELD COLLISION AVOIDANCE AID J. D. Luse Vol. 28, No. 1, 1981 33 AIDS TO NAVIGATION POSITIONING PROJECT James E. Smith, Jr. Vol. 28, No. 1, 1981 34 AN ANALYTICAL SOLUTION OF THE TWO SIGHT James A. Van Allen Vol. 28, No. 1, 1981 PROBLEM OF CELESTIAL NAVIGATION 35 K-12 METHOD BY CALCULATOR: A SINGLE PROGRAM S. Kotlaric Vol. 28, No. 1, 1981 FOR ALL CELESTIAL FIXES, DIRECTLY OR BY POSITION LINES 36 MOST PROBABLE FIX POSITION REDUCTION G. D. Morrison Vol. 28, No. 1, 1981 37 CONCERNING OUT-OF-VERTICAL ERROR T. D. Davies Vol. 28, No. 1, 1981 38 UNAMBIGUOUS TWO BODY FIX METHODS DERIVED Torben Kjer Vol. 28, No. 1, 1981 FROM CRYSTALLOGRAPHIC PRINCIPLES 39 VERTICAL SEXTANT SHORT OF THE HORIZON W. C. Marlow Vol. 28, No. 1, 1981 40 JOHN CHURCHMAN AND THE LONGITUDE PROBLEM Charles H. Cotter Vol. 27, No. 3, 1980 41 GENERAL CONVENTIONS AND SOLUTIONS-THEIR USE IN G. G. Bennett Vol. 26, No. 4, 1979 CELESTIAL NAVIGATION 42 SOME REMARKS ON SIGHT REDUCTION WITH MATRICES C. Dewit Vol. 26, No. 3, 1979 43 SIMILARITIES BETWEEN CLASSICAL CELESTIAL J. N. Schmidt Vol. 26, No. 3, 1979 NAVIGATION AND ELECTROSTATIC GYRO NAVIGATION 44 ON ASSUMED ALTITUDES D. W. Kerst Vol. 26, No. 3, 1979 45 A COMPLETELY PROGRAMMABLE METHOD OF C. T. Daub Vol. 26, No. 1, 1979 CELESTIAL NAVIGATION 46 A NEW METHOD FOR PLOTTING THE POSITION LINE: E. Gradsztajn Vol. 26, No. 1, 1979 THE GOLEM SOLUTION 47 HAND HELD CALCULATORS-AN EVALUATION OF THEIR A. Bralove Vol. 25, No. 4, 1978 USE FOR CELESTIAL NAVIGATION 48 LONGITUDE BY LUNAR OBSERVATIONS AND THE D. W. Kerst Vol. 25, No. 4, 1978 POCKET CALCULATOR 49 R1-D1: SOME IMPLICATIONS OF SHIP AUTOMATION ON C. W. Koburger, Jr. Vol. 25, No. 4, 1978 ORGANIZATION, TRAINING, DESIGN AND LOGISTICS 50 SIGHT REDUCTION WITH MATRICES Watkins. R. and Janiczek. Vol. 25, No. 4, 1978 P. M. 51 A METHOD FOR DIRECT DETERMINATION OF TIME OF R. W. Peach Vol. 25, No. 3, 1978 TRANSIT OF A CELESTIAL BODY WHEN THE OBSERVER IS MOVING 52 THE METHOD OF ASSUMED ALTITUDES: A NEW T. D. Davies Vol. 25, No. 3, 1978 APPROACH TO AN OLD ART 53 THOMAS GODFREY’S QUADRANTS C. H. Cotter Vol. 25, No. 1, 1978 54 NEW DMAHC NAVIGATION PUBLICATIONS E. B. Brown Vol. 24, No. 3, 1977 55 A METHOD FOR COMPACTING NAVIGATION TABLES J. B. Jalickee and W. J. Vol. 24, No. 2, 1977 Klepczynski 56 LONGITUDE WITHOUT TIME J. W. Luce Vol. 24, No. 2, 1977 57 ON THE COST OF MAKING MISTAKES IN NAVIGATION O. D. Anderson Vol. 24, No. 2, 1977 58 A NEW METHOD OF CELESTIAL NAVIGATION R. E. Ogilvie Vol. 24, No. 1, 1977 59 TWO BODY FIXES BY CALCULATOR M. F. A’Hearn and G. S. Vol. 24, No. 1, 1977 Rossano 60 THE ALMANACS—YESTERDAY, TODAY AND TOMORROW P. K. Seidelmann, P. M. Vol. 23, No. 4, 1976 Janiczek and R. F. Haupt Title Author Issue 61 THE COAST GUARD TWO PULSE LORAN-C D. A. Feldman, M. A. Letts Vol. 23, No. 4, 1976 COMMUNICATIONS SYSTEM and R. J. Wenzel 62 THE THANKLESS NAVIGATOR T. D. Nicholson Vol. 23, No. 4, 1976 63 TWO CENTURIES OF NAUTICAL INSTRUMENTS IN JAPAN T. Mozai Vol. 23, No. 4, 1976 64 DIRECT METHODS OF LATITUDE AND LONGITUDE C. Wight Vol. 23, No. 2, 1976 DETERMINATION BY MINI- 65 EVALUATION OF SEVERAL NAVIGATION ALGORITHMS B. Conrad, C. T. Jackson, Vol. 23, No. 1, 1976 FOR APPLICATION TO GENERAL AVIATION Jr. and A. J. Korsak 66 FINDING LATITUDE AND LONGITUDE BY CALCULATORS C. Fox Vol. 22, No. 4, 1975 67 HAND HELD CALCULATOR TECHNOLOGY APPLIED TO AN B. N. Gaon Vol. 22, No. 4, 1975 ADVANCED OMEGA RECEIVER 68 LONGITUDE WITHOUT TIME D. W. Kerst Vol. 22, No. 4, 1975 69 NAVIGATION APPLICATIONS OF THE HP-65 CALCULATOR K. E. Newcomer Vol. 22, No. 2, 1975 70 THE ACCURACY OF CELESTIAL FIXES AS COMPARED TO H. F. Van Der Grinten Vol. 22, No. 2, 1975 NAVSAT POSITIONS BY LEAST SQUARES ADJUSTMENT 71 A DIP SHORT NOMOGRAM M. F. A’Hearn Vol. 21, No. 3, 1974 72 PSYCHOLOGICAL EFFECTS IN CELESTIAL NAVIGATION R. M. Leve Vol. 21, No. 1, 1974 73 THE NAV-AID: A CALCULATOR FOR NAVIGATION R. G. Hirsch and R. L. Vol. 21, No. 1, 1974 Charlton 74 THE USE OF THE HP-35 CALCULATOR FOR SIGHT S. Rigby Vol. 21, No. 1, 1974 REDUCTION 75 H. O. 229 INTERPOLATION E. B. Brown and J. J. Vol. 20, No. 3, 1973 Speight 76 A DAY/NIGHT REMOTE-CONTROLLED LLLTV CAMERA- S. Feldman, G. Barton, B. Vol. 20, No. 2, 1973 SEXTANT SYSTEM FOR GENERAL AND CELESTIAL Katz and R. Wilkinson NAVIGATION 77 THE DEVELOPMENT OF THE ARTIFICIAL HORIZON FOR S. Moskowitz Vol. 20, No. 1, 1973 CELESTIAL NAVIGATION 78 CELESTIAL FIX-INTERNAL OR EXTERNAL? Alton B Moody Vol. 19, No. 4, 1972 79 SIGHT REDUCTION USING THE PORTABLE SEXTANT S. Feldman, P. K. Vol. 19, No. 4, 1972 COMPUTER SYSTEM Seidelmann, E. D. Stephenson, and H. C. Ketts 80 COMPUTER SIGHT REDUCTION BASED ON R. W. Flynn Vol. 19, No. 1, 1972 INTERSECTION OF EQUAL ALTITUDE CIRCLES 81 NAVIGATIONAL PLANNING AND THE USE OF SPECIAL Byron E. Franklin and Vol. 19, No. 1, 1972 TECHNIQUES Ernest B. Brown 82 A DIGITAL READ-OUT DAY AND NIGHT MARINE SEXTANT Sidney Feldman Vol. 18, No. 4, 1971 83 NEW SHORT METHOD TABLES (KI 1) FOR DIRECT Stjepo Kotlaric Vol. 18, No. 4, 1971 FINDING OF A TWO STAR FIX WITHOUT USE OF ALTITUDE DIFFERENCE METHOD 84 EXAMPLES OF MOON SIGHTS TO OBTAIN TIME AND DR. FRANCES W. WRIGHT Vol. 18, No. 3, 1971 LONGITUDE 85 LOCAL HOUR OF ARIES TABLES Frederick L. Devereux, Jr. Vol. 18, No. 2, 1971 86 NAVIGATION AT THE PRIME MERIDIAN G. Gebel and B. Matthews Vol. 18, No. 2, 1971 87 TIME AND NAVIGATION Dr. R. L. Duncombe and R. Vol. 17, No. 4, 1970 F. Haupt 88 USE OF PLANETARIA IN NAVIGATION INSTRUCTION Major Kenneth W. Brotnov Vol. 17, No. 4, 1970 89 CERTAIN Hc/Z COMPUTATION POSSIBILITIES Alfred H. Kerrick Vol. 17, No. 3, 1970 90 NAVIGATION BY DEFINITION N. W. Emmott Vol. 17, No. 3, 1970 91 THEORY AND TECHNIQUES Cherokee C. Johnson Vol. 17, No. 3, 1970 92 STONE HENGE AND THE PIRI RE’IS Alan R. Gillespie Vol. 17, No. 2, 1970 93 THE METHOD OF LUNAR DISTANCES AND Saul Moskowitz Vol. 17, No. 2, 1970 TECHNOLOGICAL ADVANCE 94 PRECOMP NAVIGATION Capt. P. V. H. Weems, USN Vol. 16, No. 4, 1969 (Ret.) 95 FUTURE ASPECTS OF MARINE NAVIGATION FOR SMALL Vernon I. Weihe Vol. 16, No. 2, 1969 CRAFT Title Author Issue 96 MICRO COMPASS FOR SMALL BOAT NAVIGATION Marvin Taylor Vol. 16, No. 2, 1969 97 LONGITUDE WITHOUT TIME Bruno Ortlepp Vol. 16, No. 1, 1969 98 NAVIGATING TO THE NORTH POLE-A SURFACE Major Gerald R. Pitzl, Vol. 16, No. 1, 1969 TRAVERSE USMCR 99 NIGHT VISION NAVIGATION G. D. Dunlap and Oliver J. Vol. 16, No. 1, 1969 Edwards 100 SMALL CRAFT OPERATION ON THE INTRACOASTAL P/C George K. Holland, N, Vol. 16, No. 1, 1969 WATERWAY OF THE GULF AREA USPS 101 YACHT NAVIGATION Ben Warriner Vol. 16, No. 1, 1969 102 A PRACTICAL MECHANICAL CALCULATOR SPHERICAL Mitchell E. Timin and Alan Vol. 15, No. 4, 1968 TRIGONOMETRY M. Schneider 103 IRRADIATION AND MANUAL NAVIGATION Richard F. Haines and Vol. 15, No. 4, 1968 William H. Allen 104 NOTE ON DETERMINING RANGE FROM SEXTANT Dr. William H. Guier Vol. 15, No. 4, 1968 ALTITUDE 105 ON THE ACCURACY OF CELESTIAL MPP’S IN AIR Major Ronald A. Briggs, Vol. 15, No. 4, 1968 NAVIGATION USAF 106 SIGHT REDUCTION TABLES FOR ORBITAL PLANE William P. Devereux Vol. 15, No. 4, 1968 DETERMINATION 107 GREAT CIRCLE ROUTE Lieut. Jack O. Horton, Jr., Vol. 15, No. 3, 1968 USNR 108 TRUE CALCULATION Michael C. Hutchins Vol. 15, No. 3, 1968 109 PROGRESS IN PRECISION TIMEKEEPING AND TIME R. Glenn Hall Vol. 15, No. 2, 1968 DISTRIBUTION 110 GREAT CIRCLE SAILING (GRAPHIC SOLUTION) William M. Fraser Vol. 15, No. 1, 1968 111 ANALYSIS OF THE CELESTIAL PLOT IN MARINE Ernest B. Brown Vol. 14, No. 4, 1967 NAVIGATION 112 MARINE NAVIGATION: WHERE WE STAND-WHAT NEEDS G. D. Dunlap Vol. 14, No. 4, 1967 TO BE DONE 113 NAVIGATION OF PLEASURE BOATS R. R. Blandford Vol. 14, No. 4, 1967 114 THE NAUTICAL ALMANAC IN ITS SEVENTH THIRD OF A D. H. Sadler Vol. 14, No. 4, 1967 CENTURY 115 A SMALL BOAT NAVIGATION SYSTEM Allan C. Bernstein Vol. 14, No. 3, 1967 116 AN ENGINEERING APPROACH TO THE MATHEMATICS OF Joseph W. Little Vol. 14, No. 3, 1967 CELESTIAL NAVIGATION 117 USE OF A SMALL COMPUTER AS A CELESTIAL D. W. Range and R. N. Vol. 14, No. 3, 1967 NAVIGATION AID Southworth 118 THE FRANKLIN PILOTING TECHNIQUE Ernest B. Brown and Bryon Vol. 14, No. 2, 1967 E. Franklin 119 MARINE USER’S MODIFICATIONS TO THE AIR ALMANAC Ernest B. Brown Vol. 14, No. 1, 1967 120 THREE DIMENSION CELESTIAL NAVIGATION Loren E. DeGroot and John Vol. 13, No. 4, 1966 Larsen 121 AN ASTRONOMICAL GUIDANCE SYSTEM FOR AIR Col. R. Genty Vol. 13, No. 3, 1966 NAVIGATION 122 CELESTIAL NAVIGATION PROCEDURES Cdr. Robert E. Williams, Vol. 13, No. 2, 1966 USESSA 123 SIGHT REDUCTION TABLES FOR MARINE NAVIGATION J. H. Blythe, Dr. R. L. Vol. 13, No. 2, 1966 Duncombe, and D. H. Sadler 124 PROPOSED NAUTICAL UNITS OF LENGTH AND TIME Dr. John C. Bellamy Vol. 13, No. 1, 1966 125 CELESTIALLY REFERENCED ELECTRONIC SPACE Robert Irving Vol. 12, No. 4, 1965 TRACKING 126 NAVIGATIONAL REQUIREMENTS AND METHODS OF Cdr. John E. Everson, N, Vol. 12, No. 4, 1965 RECREATIONAL BOATMEN USPS 127 SEXTANT SIGHTING PERFORMANCE FOR SPACE Bedford A. Lampkin Vol. 12, No. 4, 1965 NAVIGATION USING SIMULATED AND REAL CELESTIAL TARGETS 128 FROM SIMPLE TO SPACE SEXTANT Saul Moskowitz Vol. 12, No. 3, 1965 Title Author Issue 129 LUNAR DISTANCES AND OCCULTATIONS USING H. O. 214 D. D. Williams Vol. 12, No. 2, 1965 130 NEWEST ONE-ENTRY NAVIGATION TABLES Captain G. P. Hadjilias, N. Vol. 12, No. 2, 1965 C., M. I. N. 131 PRINTING OF ASTRONOMICAL AND SIGHT REDUCTION R. L. Duncombe and R. F. Vol. 12, No. 2, 1965 TABLES Haupt 132 LIMITATIONS IMPOSED ON CELESTIAL NAVIGATION DUE Francis P. Scott Vol. 11, No. 1, 1964 TO INACCURACIES OF STAR POSITIONS 133 STICK CHARTS OF MICRONESIA Lt. Col. Charles J. Davis Vol. 11, No. 1, 1964 134 THE “LOG” OF CELESTIAL NAVIGATION T. R. Stenberg Vol. 11, No. 1, 1964 135 ERRORS AND ACCURACY OF POSITION, LOPs, AND T. R. Stenberg Vol. 10, No. 4, 1963 FIXES 136 SMALL CRAFT NAVIGATION Cdr. Charles M. Bradley, Vol. 10, No. 4, 1963 USPS 137 POLYNESIAN NAVIGATION (NOTES AND COMMENT) Capt. Brett Hilder Vol. 10, No. 2, 1963 138 POLYNESIAN NAVIGATION J. P. Frankel Vol. 09, No. 1, 1962 139 PLOTTING THE FUTURE COURSE OF MARINE CELESTIAL Gene R. Marner Vol. 7, No. 4, 1960 NAVIGATION 140 CELESTIAL SIGHTING THROUGH THE SUBMARINE Lt. Cmdr. Robert Irving, Vol. 7, No. 2 & 3, 1960 PERISCOPE USN 141 PRINCE HENRY THE NAVIGATOR Norman J. W. Thrower Vol. 7, No. 2 & 3, 1960

142 SURVIVAL POSITION LOCATION USING STAR SIGHTING E. H. Sharkey Vol. 6, No. 8, 1959- 1960 143 A PROPOSAL FOR A NEW METHOD OF CELESTIAL SIGHT Dan N. Hurwitz Vol. 6, No. 7, 1959 REDUCTION AND LINE-OF-POSITION PLOTTING 144 THE RHUMB LINE ON THE ELLIPSOIDAL EARTH Ralph Hoyt Bacon Vol. 6, No. 7, 1959 145 CELESTIAL NAVIGATION WITHOUT A VERTICAL Phillip R. Burton Vol. 6, No. 5, 1959 REFERENCE 146 THE LIMACON OF PASCAL AS A BASIS FOR COMPUTED Alfred H. Kerrick Vol. 6, No. 5, 1959 AND GRAPHIC METHODS OF DETERMINING ASTRONOMIC POSITIONS 147 THE NEW BOWDITCH: A REVIEW Grenville D. Zerfass Vol. 6, No. 5, 1959 148 POLYNESIAN NAVIGATIONAL STONES Capt. Brett Hilder Vol. 6, No. 4, 1958- 1959 149 AN AUTOMATIC ASTRO COMPASS David B. Nichinson Vol. 6, No. 3, 1958 150 A PROPOSAL FOR A SURVIVAL SEXTANT Leonard E. Gray Vol. 6, No. 2, 1958 151 HAROLD GATTY AS WE KNEW HIM Capt. P. V. H. Weems, USN Vol. 6, No. 2, 1958 (Ret.) 152 THE SEARCH FOR SELF-CONTAINED NAVIGATION AIDS Richard Y. Miner Vol. 6, No. 2, 1958 153 THE ZENITH INDICATOR POSITION INSTRUMENT Lt. J. D. Bottoms, USN Vol. 6, No. 2, 1958 154 AN UNIDENTIFIED MARINER’S N/A Vol. 5, No. 8, 1957- 1958 155 THE DISCOVERY OF THE LONGITUDE Norman J. W. Thrower Vol. 5, No. 8, 1957- 1958 156 THE TRUE DISTANCE AND AZIMUTH COMPUTER FOR Sheridan L. Hall Vol. 5, No. 8, 1957- POLAR NAVIGATION 1958 157 ANTARCTIC NAVIGATION Capt. Charles W. Thomas, Vol. 5, No. 7, 1957 USCG 158 PRECISION CELESTIAL NAVIGATION IN HIGH-SPEED, Major Harold F. Korger, Vol. 5, No. 6, 1957 HIGH-ALTITUDE AIRCRAFT USAF 159 A FORMAT FOR A RAPID MULTIPLE-STAR-FIX SOLUTION Lieutenant (j.g.) Jo Vol. 5, No. 4, 1956 Swerling, Jr., USNR 160 VECTOR DIAGRAMS FOR SAILBOAT DEAD RECKONING Leonard E. Gray Vol. 5, No. 4, 1956 161 AN IMPROVED PROTRACTOR Lieutenant Commander C. Vol. 5, No. 2, 1956 H. Blair, USN 162 CELESTIAL NAVIGATION IN HIGH Major William E. Molett, Vol. 5, No. 2, 1956 USAF Title Author Issue 163 FOR MOTION OF THE BODY AND Captain Martin Berkovitz, Vol. 5, No. 2, 1956 OBSERVER USAF 164 PROBLEMS ENCOUNTERED IN SURVIVAL NAVIGATION Glenn M. Hawkins Vol. 5, No. 2, 1956 165 POLAR (ICECAP) NAVIGATION Major Palle Mogensen, U. Vol. 5, No. 1, 1956 S. Army 166 THE PLANE AND GREAT CIRCLE SAILINGS, PART 11 Peter H. Selby Vol. 5, No. 1, 1956 167 UNIFICATION OF THE ABRIDGED NAUTICAL ALMANAC G. M. Clemence and D. H. Vol. 5, No. 1, 1956 AND THE AMERICAN NAUTICAL ALMANAC Sadler 168 THE PLANE AND GREAT CIRCLE SAILINGS Peter H. Selby Vol. 4, No. 8, 1955 169 HIGH PRECISION COMPUTER FOR AUTOMATIC Gene R. Marner Vol. 4, No. 7, 1955 SOLUTION OF THE CELESTIAL TRIANGLE 170 KEPLER William R. Cagle Vol. 4, No. 7, 1955 171 ON THE GEOMETRICAL SOLUTION OF THE John A. Russell Vol. 4, No. 6, 1955 172 PUTTING THE MOON IN THE POCKET ALMANAC Robert W. Byerly Vol. 4, No. 6, 1955 173 HALF CENTURY OF NAVIGATION 1900-1950 Captains P. V. H. Weems, Vol. 4, No. 5, 1955 USN (Ret.) 174 THE GREEN FLASH W. H. Forthman Vol. 4, No. 5, 1955 175 ALFONSO THE WISE William Potter Vol. 4, No. 4, 1954 176 NAVIGATOR’S POCKET ALMANAC N/A Vol. 4, No. 4, 1954 177 NEW TECHNIQUES FOR THE RUNNING FIX Lt. Robert W. Beard, USNR Vol. 4, No. 4, 1954 178 WHITHER BOUND, NAVIGATOR? Commander Alton B. Vol. 4, No. 4, 1954 Moody, USNR 179 POLAR Samuel M. Burka Vol. 4, No. 3, 1954 180 RECENT DEVELOPMENTS IN POLAR NAVIGATION Major William E. Molett, Vol. 4, No. 3, 1954 USAF 181 AN EARLY BUREAU OF LONGITUDE: PEIRESC IN Seymour L. Chapin Vol. 4, No. 2, 1954 PROVENCE 182 IRRADIATION AND REFRACTION AT LOW ALTITUDES AND Captain H. H. Shufeldt, Vol. 4, No. 2, 1954 THE WORKING NAVIGATOR USNR 183 THE NAVIGATOR’S POCKET ALMANAC Paul E. Wylie Vol. 4, No. 2, 1954 184 DO YOU SAY WHAT YOU MEAN? Commnder Alton B. Moody, Vol. 4, No. 1, 1954 USNR 185 METHODS USED IN CELESTIAL NAVIGATION Fred Franklin Vol. 4, No. 1, 1954 186 PRECOMPUTED CELESTIAL DATA FOR HIGH SPEED Major Robert Sullivan, Vol. 4, No. 1, 1954 AIRCRAFT USAF 187 THE DIP OF THE HORIZON Hans Christian Freiesleben Vol. 4, No. 1, 1954 188 PERSONAL EQUATION AND THE MODERN MARINE Charles H. Smiley and Mark Vol. 3, No.10, 1953 SEXTANT Quirk 189 THE POCKET NAUTICAL ALMANAC Paul E. Wylie Vol. 3, No.10, 1953 190 FIXES, AND HOW TO GET OUT OF THEM Commander H. W. Vol. 3, No. 9, 1953 Dusinberre, USN 191 NAUTICAL AND STATUTE MILE CONTROVERSY Merrill Armour Vol. 3, No. 9, 1953 192 SIMPLIFIED STAR PLOTTING Commander H. W. Vol. 3, No. 9, 1953 Dusinberre, USN 193 A SURVEY OF THE EFFORTS TO DETERMINE LONGITUDE Seymour L. Chapin Vol. 3, No. 8, 1953 AT SEA, 1660-1760. PART III: A PERFECT TIMEKEEPER 194 PROBLEMS OF A SMALL BOAT SKIPPER Richard S. Nye Vol. 3, No. 8, 1953 195 THE NAUTICAL AND STATUTE MILE CONTROVERSY Commander E. R. Vol. 3, No. 8, 1953 McCarthy, USC&GS 196 TRUE AZIMUTH OF POLARIS BY NOMOGRAM J. G. van de Flier Vol. 3, No. 8, 1953 197 A SURVEY OF THE EFFORTS TO DETERMINE LONGITUDE Seymour L. Chapin Vol. 3, No. 7, 1953 AT SEA, 1660-1760. PART II: THE USE OF CELESTIAL BODIES 198 ACCURACY: AN EDITORIAL COMMENT N/A Vol. 3, No. 7, 1953 199 BUBBLE ACCELERATION Major Robert Sullivan, Vol. 3, No. 7, 1953 USAF Title Author Issue 200 H.O. 249 AND THE NEW AIR ALMANAC John Dohm Vol. 3, No. 7, 1953 201 SELECTED 1953 ALMANACS Commander Edwin A. Beito, Vol. 3, No. 7, 1953 USNR 202 WHAT’S OUR SPEED? THE EVOLUTION OF SHIP-LOGS Grenville D. Zerfass Vol. 3, No. 7, 1953 203 A SURVEY OF THE EFFORTS TO DETERMINE LONGITUDE Seymour L. Chapin Vol. 3, No. 6, 1952 AT SEA, 1660-1760 204 WHAT GEOMAGNETISM MEANS TO NAVIGATORS Captain Elliott B. Roberts, Vol. 3, No. 6, 1952 USN 205 A SHORT HISTORY OF THE INSTITUTE OF NAVIGATION John W. Calvert Vol. 3, No. 5, 1952 206 NATHANIEL BOWDITCH AND HIS WORK Paul E. Wylie Vol. 3, No. 5, 1952 207 NOTE ON THE SELECTION OF STARS FOR NAVIGATION Charles H. Smiley Vol. 3, No. 5, 1952 208 SUGGESTION FOR MEASUREMENT OF REFRACTION Robert W. Byerly Vol. 3, No. 5, 1952 209 CONCERNING THE APPARENT DIFFERENCE IN THE SIZE Captain Raleigh C. Willems, Vol. 3, No. 4, 1952 OF THE SUN AT NOON AND AT SUNSET USAF 210 CONSIDERATION OF VARIOUS TERRESTIAL Walter B. Nash Vol. 3, No. 4, 1952 COORDINATE SYSTEMS 211 EXPEDITIONS OF THE FRENCH ACADEMY OF SCIENCES, Seymour L. Chapin Vol. 3, No. 4, 1952 1735 212 NATHANIEL BOWDITCH Grenville D. Zerfass Vol. 3, No. 4, 1952 213 POLAR NAVIGATION Captain J. O. Sanders, Vol. 3, No. 4, 1952 USAF 214 PRECISE ASTRONOMICAL FIXES Giles G. Healey Vol. 3, No. 4, 1952 215 TIMEKEEPING Captain P. V. H. Weems, Vol. 3, No. 4, 1952 USN (Ret.) 216 TWO MIRRORS: THE STORY OF THE INVENTION OF THE Grenville D. Zerfass Vol. 3, No. 4, 1952 SEXTANT 217 TYCHO BRAHE Samuel Herrick Vol. 3, No. 4, 1952 218 A TWILIGHT COMPUTER AND PLANISPHERE FOR HIGH J. W. Cox and S/L K. R. Vol. 3, No. 3, 1952 LATITUDE NAVIGATION Greenaway, RCAF 219 ATMOSPHERIC REFRACTION AT LOW ANGULAR Charles H. Smiley Vol. 3, No. 3, 1952 ALTITUDES IN THE POLAR REGIONS

220 H. O. 249 REVISED John Dohm Vol. 3, No. 3, 1952 221 LUNAR METHOD OF ASTRO NAVIGATION J. S. Thompson Vol. 3, No. 1 & 2, 1952

222 ASTRONOMICAL FORMULAE FOR USE IN NAVIGATION Charles Fox Vol. 3, No. 1 & 2, 1951

223 ATMOSPHERIC REFRACTION AT LOW ANGULAR Charles H. Smiley Vol. 3, No. 1 & 2, 1951 ALTITUDES IN THE TEMPERATE ZONES 224 EARLY NAVIGATION MANUALS Grenville D. Zerfass Vol. 3, No. 1 & 2, 1951

225 LOW ALTITUDE REFRACTION CORRECTION Captain Raleigh C. Willems, Vol. 3, No. 1 & 2, 1951 USAF 226 REFRACTION NEAR THE HORIZON G. M. Clemence Vol. 3, No. 1 & 2, 1951

227 THE ORIGINAL STAR FINDER Captain Gilbert T. Rude, Vol. 3, No. 1 & 2, 1951 USN (Ret.) 228 TRANSPOLAR CELESTIAL FOR HIGH SPEED NAVIGATION Thoburn C. Lyon Vol. 3, No. 1 & 2, 1951

229 UNIFICATION OF THE AIR ALMANAC AND THE AMERICAN G. M. Clemence and D. H. Vol. 3, No. 1 & 2, 1951 AIR ALMANAC Sadler 230 ACCURACY OF MARINE NAVIGATION Captain P. V. H. WEEMS, Vol. 2, No. 10, 1951 USN (Ret.) 231 MIDDLE LATITUDE SAILING NEAR THE EQUATOR A. N. Black Vol. 2, No. 10, 1951 232 THE ACCURACY OF OBSERVATIONS MADE WITH MARINE Charles H. Smiley Vol. 2, No. 10, 1951 SEXTANTS 233 THE YACHTSMAN’S INTEREST IN NAVIGATION Randolph E. Tyrrel Vol. 2, No. 10, 1951 Title Author Issue 234 A SHORT METHOD FOR PRECOMPUTATION Samuel Herrick Vol. 2, No. 9, 1951 235 FACTS OF OF VALUE TO THE NAVIGATOR Commander Edwin A. Beito, Vol. 2, No. 9, 1951 USNR 236 PULKOVO—OLD CAPITAL OF POSITIONAL ASTRONOMY Otto Struve Vol. 2, No. 9, 1951 237 A FIX FROM ONE SIGHT Frederick Franklin Vol. 2, No. 7, 1950 238 HUMAN NAVIGATOR OR BLACK BOX? Lieutenant Commander Vol. 2, No. 7, 1950 Alton B. Moody, USNR 239 NAVIGATION METHODS COMPARED Captain P. V. H. WEEMS, Vol. 2, No. 7, 1950 USN (Ret.) 240 THE PFUND SKY COMPASS Lieutenant Commander Vol. 2, No. 7, 1950 Alton B. Moody, USNR 241 THE WORK OF THE NATIONAL BUREAU OF STANDARDS E. U. Condon Vol. 2, No. 6, 1950 IN NAVIGATION 242 TIME AND ALMANACS G. M. Clemence Vol. 2, No. 6, 1950 243 A LINE OF POSITION BY OBSERVED AZIMUTH Commander E.S. Quilter Vol. 2, No. 5, 1950 244 ATMOSPHERIC REFRACTION AT LOW ANGULAR Charles H. Smiley Vol. 2, No. 5, 1950 ALTITUDES IN THE TROPICS 245 A POSITION FINDER Paul Miller, U.S.N. (Ret.) Vol. 2, No. 4, 1949 246 A SIMULTANEOUS TWO-STAR FIX Charles T. Dozier Vol. 2, No. 4, 1949 247 NEW TYPE 1950 NAUTICAL ALMANAC Commander Edwin A. Beito, Vol. 2, No. 4, 1949 U.S.N.R 248 MIDDLE LATITUDE SAILING WHEN THE COURSE Paul E. Wylie Vol. 2, No. 3, 1949 CROSSES THE EQUATOR 249 NAVIGATION BY THE RULE OF SIXTY Commander E. S. Quilter, Vol. 2, No. 3, 1949 U.S.N 250 PRESENT STATUS OF POLAR NAVIGATION Flight Lieutenant K. R. Vol. 2, No. 3, 1949 Greenaway, R.C.A.F 251 PROBLEMS OF MARINE NAVIGATION Lieutenant Charles W. Vol. 2, No. 3, 1949 Handley, U.S.M.S 252 RECENT DEVELOPMENT IN POLAR NAVIGATION Lieutenant Command Alton Vol. 2, No. 3, 1949 B. Moody, U.S.N.R 253 SOME HISTORY OF H.O. 214 IN THE NETHERLANDS Ph. A. Gallas Vol. 2, No. 1, 1949 254 THE TRIANGULATOR Frederick Franklin Vol. 2, No. 1, 1949 255 TIMES OF SUNRISE AND OF SUNSET BY A GRAPHICAL Paul E. Wylie Vol. 1, No. 12, 1948 METHOD 256 A “NEW LOOK” FOR THE NAUTICAL ALMANAC Ramon O. Williams Vol. 1, No. 11, 1948 257 SUMMARY OF A PAPER ON THE PLACE OF NAVIGATION Bart J. Bok Vol. 1, No. 9, 1948 IN THE COLLEGE CURRICULUM 258 H.O. 249 Henrietta H. Swope Vol. 1, No. 7 & 8, 1947

259 NAVIGATION IN THE ANTARCTIC Alton B. Moody Vol. 1, No. 7 & 8, 1947

260 THE AMERICAN NAUTICAL ALMANAC AND ITS Paul E. Wylie Vol. 1, No. 7 & 8, 1947 IMPROVEMENT 261 NAVIGATION COMPUTER SERIES Captain P. V. H. Weems, Vol. 1, No. 6, 1947 USN (Ret.) 262 THE GERMAN GYRO-SEXTANT Mary R. Hunt Vol. 1, No. 6, 1947 263 CRITICAL TABLES FOR CORRECTING OBSERVED Charles H. Smiley Vol. 1, No. 5, 1947 ALTITUDES FOR ATMOSPHERIC REFRACTION IN POLAR LATITUDES 264 NIGHT SEXTANT OBSERVATIONS AGAINST A NIGHT Commander Wm. J. Catlett, Vol. 1, No. 5, 1947 VISION HORIZON Jr 265 NOTE ON DREISENSTOK’S METHOD IN CELESTIAL N. Wyman Stoker Vol. 1, No. 5, 1947 NAVIGATION 266 THE INFLUENCE OF THE EARTH’S ROTATION ON BUBBLE J. J. Green Vol. 1, No. 5, 1947 SEXTANT READINGS 267 A NEW SEXTANT William H. Holman III Vol. 1, No. 4, 1946 268 BOWDITCH Alton B. Moody Vol. 1, No. 4, 1946 Title Author Issue 269 JAPANESE ALMANACS Ralph F. Haupt Vol. 1, No. 4, 1946 270 SIMPLE COMPUTATION OF DISTANCES OVER THE B. W. Sitterly and J. A. Vol. 1, No. 4, 1946 EARTH Pierce 271 AMERICAN ALMANACS George W. Mixter Vol. 1, No. 3, 1946 272 AMERICAN NAUTICAL ALMANAC L. J. Comrie Vol. 1, No. 3, 1946 273 REVISING THE NAUTICAL ALMANAC Samuel Herrick Vol. 1, No. 3, 1946 274 THE AAF APPROACH TO POLAR NAVIGATION Fred A. Gross Vol. 1, No. 3, 1946 275 ACCURACY OF POSITION FINDING USING THREE OR S. A. Goudsmit Vol. 1, No. 2, 1946 FOUR LINES OF POSITION 276 CAPTAIN THOMAS HUBBARD SUMNER, 1807-1876 Robert S. Richardson Vol. 1, No. 2, 1946 277 INTERPRETATION OF THE CELESTIAL LINE OF POSITION Austin Phelps Vol. 1, No. 2, 1946 278 INSTRUMENTAL SOLUTIONS IN CELESTIAL NAVIGATION Samuel Herrick Vol. 1, No. 2, 1946 279 NOON INTERVAL TABLES T. F. Hickerson Vol. 1, No. 1, 1946