MICHIGAN ACADEMY OF SCIENCE. 
79 
BIOLOGY. 
BY ALEXANDER G. RUTHVEN, CHIEF FIELD NATURALIST. 
At the general meeting - of the Michigan Academy of Science last year, 
I reported upon the progress of the biological work of the Survey up to 
that time.* I stated then that four papers were in press, six in prepara- 
tion, and that a botanical investigation of an area on the west coast of 
Michigan was planned for the summer of 1)910. 
In June, 1910, Bulletin I, Biological Series 1, of the Survey was pub- 
lished. This report contained the following four papers : 
Pearse, A. S. — The Crawfishes of Michigan, pp. 9-22, 8 plates. 
Cook, Mel. T. — The Insects Galls of Michigan, pp. 23-33. 
Tinker, A. D. — The Birds of the School Girl’s Glen Region, Ann 
Arbor, Michigan. A study in Local Ornithology, pp. 35-66, S plates, 
1 map. 
Smith, Harlan I. — Preliminary List of the Sites of Aboriginal Remains 
in Michigan, pp. 67-89. 
Four papers based upon survey material and published elsewhere 
than in our reports also appeared during the year. They are: 
Baker, IT. B. — Variation in Lymnaea Reflexa Say, from Huron County. 
12th Ann. Rept. Mich. Acad. Sci., pp. 60-63. 
Ruthven, Alexander G. — Notes on Michigan Reptiles and Amphibians, 
II. 12th Ann. Rept. Mich. Acad. Sci., p. 59. 
Ruthven, Alexander G. — The Mershon Expedition to the Charity 
Islands, Lake Huron. Science, N. S., XXIII, pp. 208-209. 
Pearse, A. S. — A Preliminary List of the Crustacea of Michigan. 
12tli Ann. Rept. Mich. Acad. Sci., pp. 6S-76. 
The last paper is to be ranked with our monographs, and was pre- 
pared by Dr. Pearse for our use. 
I have investigated the status of the other manuscript papers men- 
tioned in the April report, and find that substantial progress has 
been made in all of them. The report on the biological survey 
that was made of the sand region on the south shore of Saginaw Bay 
is in press, and the others will appear as rapidly as they can be finished 
and edited. 
Manuscripts now in preparation that were not listed in the April 
report are mostly the results of work done last summer or under way 
at the present time. Dr. C. H. Kauffman reports that lie and Dr. L. H. 
Pennington had excellent success last summer in the botanical work in 
the western part of the state. Dr. Kauffman was in the field from June 
27 to September 30; Dr. Pennington from June 27 to August 27. The 
field work covered about 350 square miles in Allegan. Ottawa and Van 
Buren Counties, and copious notes and a large collection of specimens 
were secured as the basis of a report. 
*12th Ann. Rept. Mich. Acad. Sci., pp. 54-5S. 
