Bulletin American Meteorological Society celerate with a periodicity which he tried to establish, suc- ceeding only partially. The challenge posed by this very remarkable circulation system will no doubt make mete- orologists and oceanographers turn frequently to his work for guidance in the future. Berlage was no stranger to the United States. He visited this country in an official capacity in 1946, and in 1961 came again as participant in the symposium on solar varia- tions, climatic change, and related geophysical problems, arranged by the New York Academy of Sciences. In 1962 he was invited for a longer stay, spending 8 months as Hendrik Petrus Berlage visiting research associate at Tufts University, where he put his work on the Southern Oscillation in final shape. It subse- 1896-1968 quently appeared as one of the monographs of the Royal Dr. Hendrik P. Berlage, who Netherlands Meteorological Institute under the title: "The died March 3 in his 71st Southern Oscillation and World Weather." year, like many another Berlage was a member of the Royal Netherlands Academy meteorologist prepared him- of Sciences, was decorated twice by his government, and in self as a young man for an- recognition for his contributions to the origin of satellite other profession. He trained systems (which came from his avocation) had Saturn's tenth at the Technische Hochschule satellite named after him. He was a professional member of in Zurich as a civil engineer the American Meteorological Society. and, later, at the University Berlage was very friendly, and those who came to know of Strasbourg, where he took him in this country would ask about him long after he had his advanced degree, he was returned to Holland. He leaves his wife, four daughters, and drawn to astronomy. Soon several grandchildren.—Irving I. Schell after leaving the university he joined the then already famed Koninklijk Magnetisch en Meteorologisch Observa- torium te Batavia, now Djakarta, in the former Dutch East Indies. There he spent The Casella some 25 years carrying on work in tropical meteorology in the excellent tradition of his predecessors. Sensitive Anemometer Because the daily weather as a rule varies so little in the for tropics, Berlage studied at first the problem of the local monsoon, but soon the character of his work became more Micrometeorological panoramic. He focused attention especially on the quasi- periodic nature of the pressure oscillations in the tropics, Measurements discovering in the process a two to three year periodicity unrelated to the 26-month periodicity in the upper level Low starting speed: circulation in the tropics that has attracted so much attention 0.1 m/sec. in recent years. After his release from internment at the end of World War Range: 0.1 to IS II, he became director of the observatory under the new m/sec. government, soon to be released from this post to return • Linear calibration to Holland, where he became professor of climatology and meteorology at Utrecht University and a divisional chief of • Remote Indication the Royal Netherlands Meteorological Institute. There he feasible with bat- turned his attention increasingly to the Southern Oscillation. tery-operated coun- Berlage's contribution to meteorology lay primarily in ex- ter unit. tending our knowledge of this very special circulation system, which is neither wholly western, nor eastern, nor northern, No. 442-1 but mainly southern hemisphere or water hemisphere in its make-up, and which because of its inertial characteristics controls the weather over a large portion of the globe. Berlage SCIENCE ASSOCIATES was the first to show the relation of the Southern Oscillation Representing C. F. Casella & Co., Ltd./London with the Peru Current and to call attention to the Oscilla- 230 Nassau St. Princeton, NJ. 08540 tion's perturbations, which cause it to accelerate and de-

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„ ... JKBWHOLII Well send you these books. (They could be invaluable in your work. The least, very useful!)

I | AURORA AND AIRGLOW I I ENCYCLOPEDIA OF OCEANOGRAPHY Edited by RHODES W. FAIRBRIDGE, Columbia University Edited by BILLY M. McCORMAC, Geophysics Division, IIT 1966 / 1056 pages / $25.00 Research Institute, Chicago, Illinois SAMPLING OF ARTICLES AND THEIR CONTRIBUTORS: Abyssal 1967 / 704 pages / $30.00 Zone—F. Jensenius Madsen; Atlantic Ocean—R. W. Fairbridge; Arnold Gordon and Eric Olaussen; Barents Sea & White Sea—M. This is the first time all aspects of aurora and airglow, from the W. Klendova; Bathmetry—Bruce C. Heezen & G. Leonard Johnson; solar energy incident on the earth's magnetosphere to the final Dynamics of Ocean Currents-Takashi Ichiye; Energy Budget of dissipation of the energy in the atmosphere, have been investi- gated in detail by one group. All disciplines relating to the the Earth's Surface-H. Flohn; Gulf Stream-Bruce Warren; Heat phenomena are covered in this authoritative volume. Included Transport by Ocean Currents-Glenn H. Jung; Benthos, Marine- are such important and timely topics as: worldwide morphology Ralph G. Johnson; Mid-Oceanic Ridge-Bruce C. Heezen; Paul J. of airglow; magnetic field variations; dayglow observations; Fox; Ocean-Atmosphere Interaction—Jacob Bjerknes; Oceanog- manned space flight observations; electric fields; aurora and air- raphy-Wayne V. Burt; Scotia Sea & Drake Passage-Sayed El- glow observations from high altitude nuclear detonations; radio Sayed; Seawater; Chemistry—Donald W. Hood; Submarine observations; and fluorescence and resonant scattering. Canyons & Other Sea Valleys-F. P. Shepard.

| | PARTICLES IN THE EARTH'S PARTICLES AND FIELDS • ATMOSPHERE AND SPACE Edited by BILLY M. McCORMAC, Geophysics Division, IIT Research Institute, Chicago, Illinois By RICHARD D. CADLE, National Center for Atmospheric Re- search, Boulder, Colorado 1968 / 472 pages / $27.50 1966 / 236 pages / $12.50 40 international authorities cover both the experimental and CONTENTS: 1. Definitions of Particle Size; Definitions of Mean theoretical aspects of these five major areas of interest: Energetic Size; Distribution Functions. 2. The Troposphere: Sources of charged particles; Low energy charged particles; Diffusion, accel- Particles; Particle Size Distributions; Cloud Physics. 3. The Strato- eration, and loss of charged particles; Electric and magnetic fields, sphere and Mesosphere: Nature of the Stratosphere; Particle Size and wave-particles interactions; and Solar wind-magnetosphere Distribution; Chemical Composition; Mother-of-Pearl Clouds; interactions. Nature of the Mesosphere; Noctilucent Clouds; Rocket Exhaust; Probing with Optical Radar. 4. Radioactive Fallout: Mechanisms of Fallout Formation; Close-in Fallout; World-Wide Fallout; The I I ENCYCLOPEDIA OF ATMOSPHERIC Fate of Deposited Fallout. 5. Interplanetary Dust; The Zodiacal Light; Meteoroids and Meteorites; Tektites. 6. The Moon: Origin SCIENCES AND ASTROGEOLOGY of the Moon; The Lunar Surface Features; The Lunar Atmosphere; Evidence of Dust on the Lunar Surface; Source of Dust on the By RHODES W. FAIRBRIDGE, Columbia University Lunar Surface; Properties of Probable Lunar Surface Materials. 1967/1120 pages/$35.00 7. Planets, Comets, and Galactic Dust: Mars; Venus; Mercury; Jupiter and the Other Major Planets; Pluto; Comets; Galactic SAMPLING OF ARTICLES: Adiabatic Phenomena; Air-glow; Alto- Dust. cumulus; Antarctic Ice Budget; Astroblems and Meteorite Craters; Atmospheric Nomenclature; Atmospheric Optics; Baroclinity; Biometeorology; Celestial Mechanics; Climate and Geomor- | | PARTICLE SIZE: phology; Climatic Variation (Instrumental Data); Cosmic Dust; Doldrums; Energy Budget of the Earth's Surface; Fog, Smog, Theory and Industrial Applications Mist; Geostrophic Motion; Horse Latitudes; Ice Age Meteorology; By RICHARD D. CADLE, National Center for Atmospheric Re- Indian Summer; Jet Streams; Latent Heat; Magnetosphere; search, Boulder Colorado Meteorite Flux and Infall Rate; Meteorological Cycles; Middle Latitude Climates; Moon-Lunar Impact Craters; Neptune; 1965/416 pages/$18.50 Organic Cosmochemistry; Paleoclimatology: Astronomic Cycles; What is the practical importance of particle size in terms of its Planetary Intervals; Potential Temperature; Quasars; Radar As- applications to various industries? This subject is carefully and tronomy; Rainfall and Lunar Tides; Relative Humidity; Satellite thoroughly covered in this authoritative and extremely useful Meteorology; Sea Breeze and Land Breeze; Solstice, Equinox, book. Chapter Headings include: 1. Definitions of Particle; 2. Seasons; Tektites; Thunderstorm; Tropical Cyclones; Tundra General Principles covering such subjects as Light Scattering, CI imate; Ultra Violet Radiation; Vegetation Classification and Brownian Motion, Sedimentation, etc.; 3. Physiological action; 4. Description; Vortex Trail; Waterspouts; Weather Prediction (Long Air Pollution; 5. Clean Rooms; 6. The Importance of Particle Size Range); Westerlies; Zodiacal Cloud; Zone. in Fine Particle Technology.

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