Microorganic compounds adsorbed on 

 activated charcoal filters fron-i Lake 

 Michigan and Lake Huron water were 

 eluted by chloroform and alcohol. On 

 the assumption that chloroform eluates 

 represent less polar compounds fronn 

 industrial sources and alcohol eluates 

 the more polar varieties of natural 

 origin, plots of the one against the other 

 aid in judging water quality. Despite 

 certain seasonal fluctuations it appears 

 that northern Lake Michigan and Lake 

 Huron in the vicinity of Saginaw Bay 

 are relatively free of pollution. 



DANIELS, STACY, vide: L. L. KEMPE. 



DEASON, HILARY J. 



1932a. A study of surface currents in Lake 

 Michigan. The Fisherman (Grand Haven, 

 Mich.) l(5):3-4, 12. 



Summary of information on direction 

 and speed of surface currents obtained 

 from recoveries of 180 of the 283 drift 

 bottles released from the research 

 vessel Fulmar , June-August 1931. 



DEASON, HILARY J. 



1932b. Scientific investigation of chubnet 

 fishing in Lake Michigan. The Fisher- 

 man (Grand Haven, Mich.) l(4):3-4, 

 11-12. 



Description of organization and pro- 

 gram of researches carried out from 

 the research vessel Fulmar in coopera- 

 tion with the States of Michigan and 

 Wisconsin and four net manufacturers, 

 and statement of principal goal as 

 determination of nnesh size most suit- 

 able for exploiting chubs and least 

 harmful to immature lake trout. 



DEASON, HILARY J. 



1933a. Feeding adaptations in fishes. The 

 Fisherman (Grand Haven, Mich.) 2(7): 

 3-4, 10-11. 



Anatomical comparison of various 

 types of feeding mechanism of fishes. 



DEASON, HILARY J. 



1933b. Geological formation of Great Lakes. 

 The Fisherman (Grand Haven, Mich.) 

 2(3):3-4, 10. 



Review of major stages and drainage 

 patterns in the geological history of the 

 Great Lakes. 



DEASON, HILARY J. 



1933c. Preliminary report on the growth 

 rate, dominance, and maturity of the 

 pike-perches (Stizostedion) of Lake 



Erie. Trans. Amer. Fish, Soc. 63: 

 348-360. 



Comparison of growth of walleyes, 

 blue pike, and sauger. Includes also data 

 on dominance of the 1926 year class and 

 on size at maturity for the three species. 



DEASON, HILARY J. 



1934. The development of fishes, tracing 

 the natural developments from egg to 

 fry. The Fisherman (Grand Haven, 

 Mich.) 3(11):1, 3. 



Description of embryological devel- 

 opment based on eggs and fry of the 

 walleye. 



DEASON, HILARY J. 



1935. Some general considerations of plank- 

 ton and plankton problems with refer- 

 ence to water supplies. Mich. State 

 Coll., Eng. Exp. Sta., Bull. iO(4):5-14. 



General discussion of such matters 

 as factors of plankton production, verti- 

 cal distribution, seasonal abundance, 

 relation of plankton growth to odors 

 and tastes in water, and effect of pollu- 

 tion on plankton growth. 



DEASON, HILARY J. 



1936a. Bottles set adrift on Lake Michigan 

 yield information on surface currents. 

 Mich. Conserv. 6(6):9. 



Review similar to that published by 

 same author in 1932. 



DEASON, HILARY J. 



1936b. Upper Peninsula once bed of great 

 inland sea. Mich. Conserv. 6(4):7, 11. 



Brief popular account of certain 

 stages of the glacial history of the Great 

 Lakes region. 



DEASON, HILARY J. 



1939. The distribution of cottid fishes in 

 Lake Michigan. Pap. Mich. Acad. Sci, 

 Arts Lett. 24 (pt. 2):105-115. 



Distributional study in which many of 

 the locality records, particularly for 

 deep-water species, were based on 

 specimens recovered from stomachs 

 of lake trout and burbot. 



DEASON, HILARY J., and RALPH HILE. 



1947. Age and growth of the kiyi, Leu- 

 cichthys kiyi Koelz, in Lake Michigan. 

 Trans. Amer. Fish. Soc. 74:88-142. 



Comparative study for different re- 

 gions of the Lake which revealed no 



11 



