308 RecentLiterature. [April/kirk

Passerculusrostratus group the author unites guttatuswith rostratusand restrictssanctorum as a residentform on the San Benito Islands. l:ie agrees with Oberholser(vid. sup.) that the recently describedanulus of Huey is a form of sandwichensisbut goesfarther and treats all of the rostratusgroup in the same manner. I)ickey, I)on•ld I•.--A New Clapper Rail from Sonora. (Trans. San DiegoSoc. Nat. Hist., VI, No. 18, December24, 1930.)--Railus obsoletu• rhizophorae(p. 235). Wetmore, Alexa•der.--The Bullfinch of Ile a Vache, Haiti. (Proc. Biol. Soc. Washington,Vol. 44, Feb. 21, 1931.)--Loxigilla violaceaparishi (p. 27). The Ornithological Journals. -Lore. XXXIII, No. 1. January-February,1931. The Rosy Finch, a Friendly Winter Bird in Colorado. By Mrs. George J. B•iley.--A popular accountof the Leucostictes. The Seasonand the Christmas Census take up most of the issue. In the latter Cape May, N.J., with 78 specieshe•ds the list for the north- eastern states. Dr. A. A. Allen has an interestinglife history of the Cormorant; there is a color plate of the BurrowingOwl by Brooksa•d a photographand accountof the outrageouskilling of Hawks at Cape May againstwhich we have repeatedlyprotested. The New JerseyGame Commissionhas prom- isedto "look into the matter," but the feelingon the part of sportsmenand gamebreeders is so stronglyagainst the Hawks that it will probablytake action on the part of a•l bird loversin the State to produceany results! The Condor. XXXIII, No. 1. January-February, 1931. SomeFlocking Habits of the CaliforniaQuail. By JohnB. Price. Notes on the Spotted and Flammulated ScreechOw]s in Arizona. By E. C. Jacot. Variation in Color of Male House Finches. By H. Michener and Jose- phine R. Michener.--This is an exceedinglyinteresting and suggestive paper. The authorstook a few feathersfrom the rump of every m•le bird that visited their traps and succeededin somecases in securingseveral samplesat considerableintervals from the same individualsshowing the actua•change in color. In all, 1980 plur•ges sampleswere obtainedand it wasfound that of these,383 individuaJswere orange or yellowinstead of red and that thosethat repeatedin later yearsusually ctmnged to red but there was no evidenceof a•y reverse changeonce the red phim_•gewas attained. The brighteningof the red coloris attributed to the lossof the gray barbulesa•d referenceis madeto a similarexplanation in a previous paper by Dr. Grinnell. We would call attention to the fact that this r•tter was fully explainedwith photomicrographillustrations by Dr. J. Dwight still earlierin his 'Sequenceof Plunmgesand Moults of the Pas- serincBirds of N.Y.' (Ann•]s N.Y. Acad. Sci. XIII, 1900). This, the ¾ol. XL¾III] j 309 mostimportant paper yet publishedon the molt of Americanbirds, is not includedin the authors'bibliography l CharlesAndrew Allen. By JosephM•illi,,•d.--While known as a col- lector, mainly to the past generationof ornithologists,Mr. Allen's bird s•in• are to be foundin almostevery large collectionin the eastas well as in California. He died in June 1930 in his 89th year. SomeFlowers vi•ted by . By A. L. Pickens.--List of p•nts with colorof flowers,wMch have interestedH•mm•ngbirds. TheWilson Bulletin. ' XLII, No.4. December,1930. The Barro ColoradoLaboratory as a Stationfor OrnithologicalResearch. By JosselynVan Tyne.--Illustrated. Notes on the Wild Turkey in Indiana. By S. E. Perkins,III. Larine Successionon Lone Tree Island. By C. G. Manuel. Territory Disputesof Three Pairs of Nesting Marsh Hawks. By Paul L. R. Errington. SeasonalChanges in a Bird Habitat in Texas. By G. Eftrig. Notes on the Birds of South Central J•,,,•,s. By F. M. Alexander. Notes on the Birds of Cranberry Glades, PocahontasCounty, West Virginia. By Maurice G. Brooks. Birds of BuchananCounty, Iowa. By Fred J. Pierce.

The Oõlogist. XLVIII, No. 1. January, 1931. In the Nesting Haunts of the WesternWinter Wren. By Fred Maltby. Pennsylvania and New Jersey Nesting Recordsfor 1930. By R. F. Miller.

Bird Banding. II, No. 1. January, 1931. A Study of the Chickadeeand White-breastedNuthatch by Means of Marked Individuals. By Wilbur K. Butts.--An admirable article illus- trating the possibilitiesof the study of the actionsand behaviourof indi- vidual birds. Bird-Banding; Its l•rst Decade under the Biological Survey. By F. C. L/ncoln.

Bulletin of the Essex County [w•_,•__.]Ornithological Club. No. 12, December,1930. The Interestin• May of 1930. By Ludlow Griscom.•With daily Nsts for May 7, 14, 30. IpswichRiver Bird Trip. By Ralph Lawson.--114species identified on May 17-18 by the party of twenty-seven,between Howe and Ipswich,Mass. The ShootingSeason of 1930 in EssexCounty. By Edward Babson. Birds of A SeptemberAfternoon. By A. P. Stubbs. Say'sPhoebe in EssexCounty, Mass. By S. G. Emilio. A Bluegray GnatcatcherFamily. By Philip Emerson.--Identity not positive, the nest being quite ,mlilre that usually made by the speciesand 310 •'Auk• the location in northern Massachusettsis far beyond its known breeding range, as stated by the editors. North American Birds of Accidental Occurrence in the British Isles. By S. G. Emilio.--A compilationwith interesting comment. Some Ocean Birds. By Francis H. Allen. The Avifaunas of the Countiesof Norfolk, England and Essex, Massa- chusettsCompared. By Charles W. Townsend. The Post-breedingNorthern Migration of North American Herons. By Charles W. Townsencl.--It is pointed out that this migration is contrary to all the "rules" governingbird movementsand that all influencessupposed to governthe birds at this seasoncall for travel in the oppositedirection. The query is made as to why the older ornithologistsdid not mention this northward movement and it is inferred that possibly it did not occur in their time. As a matter of fact Wilson mentions the abundance of white Herons on the New Jersey marshes "all summer." Both the Little Blue and Snowy Herons bred there in his day and this would obscure any in- creasefrom the south, so that it is probablethat the flight occurredthen as it does now. "Hawks is Hawks" but some axe Mouse Traps. By John B. May.--A strong plea for Hawks. The quotation from Phillips and Lincoln quoted in this paper is most aproposbut so bent are the sportsmenon their own killings that the Hawks are refusedany consideration. The Duck Hawk, they say, "is sucha magnificentbird, and possessessuch mastery of the air, that the spectacleof one in pursuit of a swift-flying Teal or other duck shouldcall forth the highestadmiration of the observer,rather than a feel- ing of resentment coupledwith a desireto kill the bird which is striving to do only that which the hunter himself has planned." It might be added that the Hawk is seekingfood in the only way that nature has provided while man utterly unfitted by nature to catch ducksis really goingout of his field and invading that of the bird 1 Pursuit and Capture of Birds of Prey. By Charles W. Townsend.-- Another plea for the Hawks. Annotated List of Birds Observedby the Essex County Ornithological Club During 1930. By Arthur P. Stubbs.

The Cardinal. III, No. 1. January,1931. A Year on Southampton Island. By George M. Sutton.--With a sketch of King Eiders in flight. The 1930 Expedition to Hudson Bay. By W. E. Clyde Todd. Hummingbirdsin Time of Drought. By Carl W. Schlag. Woodcocksin a Dry Season. By Bayard H. Christy.

The Gllll. Vol. 12• Nos. 8-12; Vol. 13, No. 1. August•1930-January• 1931. Field Observationsat Las PosadosCamp• Napa Co., Calif. By Amy Rinehart. [September.] The 1930Trip to theFarallon Islands. By C. A. Bryant.--Otherpapers on the islandsfollow. [October.] A Lagoonin September.By L. P. Bolander.--MossLanding, Castr(• ville, Calif. [November.] Some Birds of Mr. LassenVolcanic National Park. By Cornelia C. Pringle. [January.] Bulletin Io•a Ornithologists'Union. VII, No. 7. July-September, 1930. TheCory's Bittern and the Sennett's Nighthawk. By MaryL. Bailey.-- A bird supposedto be thismelanistic form of the LeastBittern was seen at Mud Lake,S. D. andanother at SpiritLake. In bothcases it wasin companywith Least Bitterns which is additional evidence of its reelartistic character. A Sennett'sNighthawk was also recorded,presumably at Sioux City, Iowa. Septemberat McGregor. By I)rusillaE. Flagg. The Wren-Tit. II, No. 4. October,1930. Bird listsand noteson field trips of the SantaClara Valley Audubon Society,San Jose,Calif. The Flicker (Mimeographedjournal). II, No. 3. May-June,1930.. Nestingof the BarredOwl. By StanleyStein. SpringMigration Dates at Minneapolis,Minn. The Fltoker(Mimeographed journal). II, Nos.4-5. May-October, 1930. The 1930Nesting Season. By E. D. Swedenborg.List of nestsfound in the vicinity of Minneapolis. Notes on SomeBirds Seenin Western Minnesota. By Klden Risser. Birdingin Lac qui Parle. By GustavSwanson. The Raven(Mimeographed journal). I, Nos.10-12; III, No. 1. Oc• ber 1930-January, 1931. Localnotes on the birds of Virginia by theVirginia Society of Ornithology. The Migrant (Mimeographedjournal). I, Nos.2, 3-4. September and December,1930. Notesetc., by membersof theTennessee Ornithological Society. The l•ia. (13thSeries). I, No. 1. January,1931. The Relationbetween the Gonadsand the SecondarySexual Characters in Vertebrates,especially in Birds. By G. J. vanOordt.--It is shown that malesof the DomesticFowl when castratedretain somesecondary sexual characterswhile*,others, evidently dependent onthe presence ofthe gonads, arelost or modified• sothat a birdintermediateS-between normalmale and femaleresults. Whena femaleis ovariectomizeda •imilar bird is produced. Ncw Dr. van Oordthas produced the samechange by castratinga male 312 Auk

Black-headedGull (Larus ridibundus),the bird retaining the white headed winter plumageat a]l times showingthat the black head as well as brighter bi]l colors,characteristic of the summeror breedingseason, are dependent on the presenceof the gonads. Grafting of sexual organs in castrated individuals in the Domestic Fowl has caused the return to normal condition and in some caseswhere grafting was done during molt the feathers show the two types combined,the distal part developedunder the first condition and the proximal underthe second. Additional Notes on the Birds of the Falkland Islands and Dependencies. By A. G. Bennett. Further Notes on the Birds of Corsica. By W. A. Payn. The Birds of Northern Nigeria. By H. P. W. Hutson and D. A. Banner- man. Part II. Additions and Corrections to the 'Systema Avium Australlanarum.' By Gregory M. Mathews. On the GeographicalVariation of the Snow (Plectrophenax nivalis). By Finn Solomousen.--P.nivalis subnivalis(Brehm) is revived for the Greenlandbird, the Iceland form is namedP. n. insulae(p. 64) and both townsendiand hyperboreusare consideredsubspecies of nivalis. In this paperas in the majority of recentsystematic reviews and lists the so- called "typical" race (i.e. the onein which the specificname is duplicated) is wisely placed in its proper place systematicallyor geographica]ly. In preparingthe sequencein the new A. O. U. 'Check-List'this practicehas been criticisedand the claim that the form with duplicatedname should stand first. As a matter of fact this race is no more typical (usua]lyless so) than the others and differs only in that it was the first to be named. If a check-listis to be systematic,species and racesas well as generaand families must be arrangedin accordancewith that principal. The only alternative is to arrange a]l chronologicallywhich would bring together forms with no closerelationship. SomeEvidence of the Nightingale Singingin Tropical West Africa. By D. A. Bannerman. CommunalDisplay in Hummingbirds. By E. M. Nicholson. Ilullettn of the British Ornithologists' Club. CCC XLIV. Octo- ber 30, 1930. C. B. Ticehurst discussedthe downy plumageof the shorebirds. Lord Rothschild exhibited the hitherto unknown egg of the Paradise- Crow (Lycocoraxpyrrhopterus) and also that of the Bird of Paradise (Phonygammuskeraudrenii) which provesto be parasiticon another Para- dise Bird (Paradisea apoda). W. L. Sclater describes Viridibucco coryphaeajacksoni (p. 16) from Uganda while Kinnear and Whistler describe Dendrocittatufa vernayi (p. 17) southeasternIndia and D. formosaesarka• (p. 17) Vizagapatam. Ilulletin of the British Ornithologists' Club. No. CCCXLV. December 3, 1930. ¾•. XL¾III] J 313

Noteson the Hill-MigratingBirds of Ceylon,. By GeorgeBrown. Kinnearand W]xistlerpropose •q/tta castaneoventr/s airnorae (p. 27) from Kumaon and Gahrwal Himalayas; D. A. Bannerman,G/areo/a pratinco/a bowing(p. 28) from Gambia,and G. M. Mathews,MFiomo9'a macroc•phala enderb• (p. 29) from Enderby Island and Phoe.bastria nigrip•s reischekia (p. 29) from New Zealand. •ullztin of thz •ritimh OrnithologiSt' Club. CCC XLVI. Decem- ber 31, 1930. The addressof the chairman,Major Flower, takes up a large part of the G.L. Batesdescribes twelve new birds from West Africa. ]•11ztin of thz ]•ritish Ornithologl•t•' 01ub. No. CCCXL¾II. January 31, 1931. Hartert and Levauddendescribe Nea•/•s typ/ca •nont•co/a(p. 56) from Madagascarand Dr. E. Mayr, Pt//op•ra plumbeagranti (p. 59) and Pachycephalopsishatta•nensis azillariz (p. 59) from New Guinea.

•rltt•h •irdz. XXIV, No. 8. January, 1931. Further Notes on the Breeding Habits of the Manx Shearwater. By R. M. Lockley. Noteson the Birdsof Scilly. By A. W. Boyd. Incubationand Rearingof Young by Wood-Pigeon. By B. H. Ryves.

•rltt•h •irdz. XXIV, No. 9. February, 1931. The British Birds Marking Scheme. By H. F. Witherby.--Progressfor 1930. Somebreeding Habits of the StormPetrel. By SetonGordon. Great CrestedGrebe Inquiry. By T. H. Harrison. A cooperativein- vestigationwhich shouldyield valuableresults.

Thz O51ogtzt•' Rzcord. X, No. 4. December1, 1930. NestingNotes from NorthwestCanada. By T. E. Randall. Notes on the Nesting Habits of the Gray Hornbill (Lophocerosnasutuz). By C. R. S. Pitman. Male Eme•ld Cuckoo (Chryaococ•zc. intermedius)Feeding Young. By A. G. Worman. Nesting of the Cape Widgeon (Neff/on capense)near Capetown. By R. M. B•dlam. Ne•ing of the Gray-backedStorm Petrel. By A. G. Bennett.--Garrod/a • chubb/on the Falklands and South Shetlands. NestingExperiences in NorthwestCanada. By H. W. Holben. Photographof the Long-tailedNightjar ($cotorniac/imacur•). Thz ]•at•lzttr. II, No. 4. October,1930. Noteson the Sharp-tailedHoney-guide. By Herbert Friedmann. 314 Auk

The Birds of Marsabit Mountain, Kenya Colony. By R. B. Sharpe.-- An annotated list. [On African Birds of Prey.] By A. H. P. W[ikee]. A New Francolin from Karamoja. Uganda. By H. F. S[teneham].-- Pternistes/eucoscepus tokora (p. 113).--While the practise of signing short notes wth the author's initials, only, may be excusable,when it comes to descriptionsof new forms only uncertaintyensues, although in the present casethe full name may be inferred.

The Emu. XXX, Part 3. January, 1931. Two Australian Flycatchers. By N.J. Favaloro.--With excellent coloredplate of Monarcha canescensand Carterornisleucotis. Proceedingsof the Twenty-ninth Annual Congressof the R. A. O. U. Brisbane, 1930.--Followed by accountsof the excursionsheld in con- junction with the meeting, the addressof the presidentE. A. Le Souef, and the district reports. Desert Forms of Bird Life. By A, G. Campbell.--With distributional maps for several Australian desert forms. A Singer of the Heath Country. By Norman Chaffer.--The Heath Wren ( Hylacola pyrrhopygia). Certain Introduced Birds of New Zealand. By Mrs. Perrine Moncrieff. Notes on the Starling. By J. R. Kinghorn.--The BiologicalSurvey and others interested in bird conservationand economicornithology in America would do well to read this paper carefully. Mr. Kinghorn says "we must keep our eyesopen and castaside our prejudices .... the Starling is a dirty nester, takes possessionof the nesting sites of our native birds, eats fruit, seed, grain and insects. Here our problem begins,because we have the Starling with us for all time." All that he saysis true of America also and the sociablecharacter of the bird and its devouring of larvae of the Japanesebeetle should not be taken as balancingthe crowdingout of our native specieswhich is now in progresstea far greater degreethan we realize. The Birds of Creswick,Victoria. By H. W. Payne. Additions to the Birds of Kapiti Island. By A. S. Wilkinson. There are in this number many admirable halftone illustrations from photographs--includingthe Gray Kiwi, Owl Parrot, Heath Wren, Hooded Robin, etc.

Alauda. (SeriesI) II, Nos. 7-8. December20, 1930. [In French.] A Contribution to a Study of the Birds of Upper Savoy. By R. Poncy. The Staxlingand Its Food. By P. Madon. Preliminary Data on the Birds of the Western Sahara. By H. Heim de Balsac. Bird Migration and Instinct. By M. Thomas. Material for a Study of the Propagationof the Mistletoe by Birds. By H. Helm de Baisac and N. Mayaud. ¾ol. 1981XLYIIIl J P•/-,•f'$. 315

Journal fi•r Ornithologle. LXXIX, Heft 1. January, 1931. [In German.] Observationson the Breeding Places of the Alpine Swift (Micropus me/bamdba). By M. Bartels. The Rosy Starling (Pastorroseus). Its Habits and EconomicStatus in Turkestan. By M. K. Serebre,•uil•ov.--Bothof thesepapers are illustrated by a numberof a•mlrable photographs. The Distribution of Birds in the Southern Ural Mountains and Some New Subspeciesfrom the Region. By S. Snigirewski. Contributionsto the Ethology of the SocialCorvidae. By K. Lorenz. On Antbusrichardi and A. str/o/atusin China. By E. Stresemann.

Ornithologische Monatsberichte. XXXIX, No. 1. January- February, 1931. [In German.] A SecondHybrid between Ddichon urbica and Hirundo rustica. By H. Hampe. On the Display of Parotia sefilata. By E. Stresemann.--Illustrated Preliminary Account of the OrnithologicalResults of the Heinrich Ex- pedition of 1930-1931.--Ornithology of the Latimodjong Mountains of southernCentral Celebes. By E. Stresemann.--Heinrichiacalligyna (p. 9) gemand sp. nov.; Geomaliaheinrichi (p. 10) gemand sp. nov. both of these new types belongingto the Brachypteryginae. In addition there are describedErythrura trichoasan/ordi (p. 12); Chlorurahyperythra micro- rhyncha(p. 12), Collocaliafrancica sororum (p. 12). Numerouslocal noteson birds of Germany.

Beitrage stir FortpA•,•t,•_-s-biologie der Vogel. VII, No. 1. January, 1931. [In German.] On the Breeding habits of Pan• 5•us 5•a•us. By C. O. B. Ten Kate. New BiologicalObservations on the Herring Gull. By H. Noll. On the Curlewsand their Flight. By Erlk Rosenberg. Observationson the Nest of the Crane (Mega•n• • •r•). By E. Bock. Double-yolkedEggs. By H. Krohn.

Der Vogelzug. II, No. 1. January, 1931. [In German.] Twelfth Reporton Bird Observationat the BiologicalStation of Heligo- land. By Rudolf Drost. On Bird Migration in the North Sea Region 'basedon Results of the International Observationsin the Autumn of 1930. By R. Drost and E. Bock. Old and New Experimentson the Senseof Direction of Birds. By E. Schuz. On Bird Bandingof the ForestInstitute at Leningrad. By G. Doppel- mair. 316 Auk

Contribution to the Knowledgeof the Autumn Flight Route of the Siskin. By J.P. Boun• and J. C. Koch. Jay Migration through eastern Neufahr-Danzig in the Autumn of 1930. By W. Dobbrick.

Le (•erfaut. 1930. Nos. 2 and 3. [In French.] Notes on bird observationson birds in Belgium,with an extendedrecord of bird banding (No. 2). Der Ornithologische Beobachter. XXVIII, Nos, 1, 2, 3, 4. Octo- ber, 1930-January, 1931. [In German and French.] Report of the Swiss Bird Observation Station at Sempach. By A. Schifferli.--With a summary of bird banding from 1924-1929. (October.) On the Land Rail (Crex crex). By J. Bussmann. (November.) Review of 'OiseauxdeLa Snisse.' By O. Meylan. (November.) On montifringilla, By A. Mathey-Duprez. (December.) Annual Report of the President of the Swiss Society for Bird Study. By L. Pittet. (Januaxy.)

Tori. VI, No. 30. November, 1930. [In Japaneseand English.] Birds of Parry Group, Bonin Islands. By Y. Yamashina. On a Collectionof Bird-skinsand Eggs from the Riu Kiu Islands. By K. Kobayashi. SomeResearches on the BreedingHabits of Cuckoosin Japan. By T. Ishizawa. On a New Subspeciesof Prosteganuratmagneri. By Y. Yamashina. [In English.]--Prosteganura(:gem nov.) for Microcherapreoccupied P. h. okadai (p. 115). A Collection of Birds made by Mr. H. Yoshida in Mexico. By N. Kuroda. [In English.] A Small Collection of Birds from South Manchuria. By N. Kuroda. [In English.] Ardea. XIX, No. 3. December, 1930. [In Dutch.] On the Breedingof Phalacrocoraxcarbo sinensis in Immature Plumage. By F. ttaverschmidt. Some Birds which I saw in the United States of America. By C. H. Thiebo. On the Food of the Gray Heron (Ardea cinerea cinerea). By N. Tin- bergen.--Pelletscontained along with other food three speciesof mice,a speciesof mole and a shrew.

OrBis Fennioa. VII, No. 4. [In Finnishand Swedish.] The Food Remainsof the Eagle Owl. By K. E. Kivirikko.--Analysis of Pellets. [In Finnish.] Pagesfrom the CooUsDistribution in Finland. By E. W. Nystrfm and G. Idma•. [In Swedish.] ¾oL •¾III1

Why do the Birds Strike against the Lighthouses. By S. Rodlin. [In Swedish.] 1Voteson the Birds of Enontekion[Finland]. By A. J. Kopperi. [In Finnish.] A Study of the Biology of L/mosa /apponiea. By Boris Kasantzew. [In The &v!cultural Magazine. VIII, No. 12 and I X, Nos. 1 and 2. December, 1930--February, 1931. ColoredPlates of the Indian Shama,Sckalow's Touraco and the Blue and White K/ngfisher. Death of an American Whooping Crane. By A. F. Moody.--In the Lilford Collection;the individualhad beenthere for overthirty-eight years and was adult when secured. (January.) Illustrated accountsof the Turkeys and Guinea Fowls by J. Delacour and A. Ghigi (January), of the Ostrich-likeBirds by Delacour (February), and Mound-buildersby Seth Smith (December). Numerousaccounts of the breedingof rare speciesin captivity. L'Oiseau. XI, No. 11. November,1930. [In French.] Descriptionof New Birdsfrom Indo-China. By J. Delacour.--Le/opti/a

$1r/z ZeptoFra•n•n•ca•ieehurst/new name for $. Z.o•/enta//s (p. 654). SystematicHistory of the Toucans. By Guy de Germiny. Devoted mainly to aviaries and aviculture. &viculture. (SeriesII) II, No. 12. III, Nos. 1 and 2. December, 1930--February,1931. Colored Plates of the Regent Bird of Paradise;Plumed Jay and blue variety of the AlexandrineParrakeet. ßWhere is Home? By H. O. Lindsey.--Con$•in•a recordof springarrivals at Grand Isle, sixty-twomiles south of New Orleans. (January.) Thesenumbers abound in interestingnotes on cagebirds, aviaries, bird shows, etc. Ornithological Articles in Other Journals. Lewis, Harrison F. The Relation of Canada Geese and Brant to CommercialGathering of Eel-grassin the St. LawrenceEstuary. (Cana- dian Field Naturalist March, 1931.) Mousley, Henry. Notes on the Home Life of the Virginia Rail. (Cana- dian Field Naturalist, March, 1931.) Mousley, Henry. A Further Study of the Home Life of the American Goldfinch. (CanadianField Naturalist, December,1930.) Lewis, Harrison F. UnsuspectingChickadees. (Canadian Field Naturalist, February, 1931.) Critchell-Bullock, J. C. An Expedition to Subarctic Canada. (Canadian Field Naturalist,January and February, 1931.)