512 References 



Hewitt, E. J., 1952, Sand and water culture methods used in the study of plant 

 nutrition, Commomceahh Bur. Haiti. Plantation Crops, Tech. Commun. 22. 



Hjort, J., 1937, The story of whaling, Set. Monthly, 45: 19-34. 



Hobbs, H. H., Jr., 1942, The Crayfishes of Florida, Univ. Florida Pubis., Biol. 

 Sci. Ser. 3 (2): 1-179. 



Hopkins, D. M., and R. S. Sigafoos, 1951, Frost action and vegetation patterns on 

 Seward Peninsula, Alaska, U. S. Geol. Survey, Bull. 974-C: 51-101. 



Howard, W. E., 1949, Dispersal, amount of inbreeding, and longevity in a local 

 population of prairie dcermice on the George Reservation, southern Michigan, 

 Contrihs. Laboratory Vertebrate Biol., 43: 1-43, University of Michigan. 



Hubbs, C. L., and R. W. Eschmeyer, 1938, The improvement of lakes for fishing, 

 Univ. Mich. Inst. Fisheries Research, Bull. 2. 



Hunter, G. W., Ill, 1942, Studies on the parasites of fresh-water fishes of Con- 

 necticut, State Geol. and Nat. Hist. Survey (Connecticut) Bull. 63: 228-288. 



Hunter, G. W., and W. S. Hunter, 1929, Further experimental studies of the bass 

 tapeworm, Proteocephalus ambloplitis (Leidy). Supp. 18th Ann. Kept. N. Y. 

 State Conservation Dept. Biol. Survey, Erie-Niagara System, 1928: 198-207. 



Hunter, G. W., and W. S. Hunter, 1935, Further studies on fish and bird parasites, 

 N. y. State Conservation Dept., Biol. Survey, 24, The Mohawk-Hudson water- 

 shed, Suppl. Ann. Rept. 9. 



Huntsman, A. G., 1938, North American Atlantic Salmon /. Conseil permanent 

 intern, exploration mer (Extrait du rapports et proces-verbaux ) 4: 11-15. 



Huntsman, A. G., 1948, Odontosyllis at Bermuda and lunar periodicity, /. Fish- 

 eries Research Board Can., 7: 363-369. 



Hutchins, L. W., 1947, The bases for temperature zonation in geographical dis- 

 tribution, Ecol. Monographs, 17: 325-335. 



Hutchins, L. W., and M. ScharlF, 1947, Maximum and minimum monthly mean 

 sea surface temperatures charted from the "World Atlas of Sea Surface Tem- 

 peratures," /. Marine Research (Sears Foundation), 6: 265-268. 



Hutchinson, G. E., 1941, Ecological aspects of succession in natural populations. 

 Am. Naturalist, 75: 406-418. 



Hutchinson, G. E., 1944, Nitrogen in the biogeochemistry of the atmosphere. Am. 

 Scientist, 32: 178-195. 



Hutchinson, G. E., 1948, Circular causal systems in ecology, Ann. N. Y. Acad. 

 Sci., 50 (An. 4): 221-246. 



Hutchinson, G. E., 1950, Survey of contemporary knowledge of biogeochemistry. 

 3. The biogeochemistry of vertebrate excretion. Bull. Am. Museum Nat. Hist., 

 96: 1-554. 



Hutchinson, G. E., and E. S. Deevey, Jr., 1949, Ecological Studies in Populations. 

 Survey of Biological Progress, G. S. Avery, Editor, 1: 325-371, Academic 

 Press, New York. 



Hutchinson, G. E., E. S. Deevey, Jr., and A. Wollack, 1939, The oxidation-reduc- 

 tion potentials of lake waters and their ecological significance, Proc. Natl. Acad. 

 Sci., 25: 87-90. 



Iselin, C. O' D., 1936, A study of the circulation of the western North Atlantic, 

 Papers Phys. Oceanog. Meteorol., 4(4): 1-101. 



Iversen, J., 1944, Viscum, Hedera, Ilex as climate indicators, Geol. Fbren. i 

 Stockholm Forh., 66: 463-483. 



Jaeger, E. C, 1949, Further observations on the hibernation of the poor-will. 

 Condor, May-June. 



