INDEX 
293 
Pearse, A. S’., Page. 
Report on Crustacea collected by the Michigan- Walker expedition to the state of 
Vera Cruz, Mexico 108 
Notes on Michigan Crustacea 130 
Notes on a Palaemon from Kamerun 135 
Plant succession, Light as a factor in producing . 201 
Progress of geological and biological survey : 
Geology and topography . . 00 
Biology 70 
Presidents address, Recent achievements in parasitology 18 
Psychotria urulata as a coffee plant 199 
R. 
Rahn, Otto, Soil and soil problems from the standpoint of the microbiologist 
Recent achievements in Parasitology 
Report of the Treasurer 
Report of the Librarian of the Academy, 1910-1911 ■ 
Resistance of Trypsin to high temperatures 
Retrogressive metamorphosis artificially produced 
Rogers, Frank F., Relation of rural highways to Michigan’s resources......... 
Rural highways, Relation of to Michigan’s resources 
Russula, Notes on 
Ruthven, A. G., 
Progress of the geological and biological survey of Michigan — biology.... 
Notes on Michigan reptiles and amphibians, III 
Librarian’s report 
S. 
Salt industry of Michigan, Preliminary report of 
Significance of wages in the present Labor problem 
Sleeping sickness 
Soils and soil problems, from the standpoint of the 
Physicist 
Ghemist 
Microbiologist 
Botanist 
Soil management, The theory and practice of 
Soil fungi, A preliminary report on 
Spermatogenesis of an orthopteron, Ceuthophllus latebricola ■ 
Spirochetes 
40 
18 
14 
275 
33 
198 
04 
04 
220 
79 
114 
81 
201 
30 
40 
40 
55 
208 
97 
24 
T. 
Table of contents 5 
Theory and practice of soil management 55 
Thompson, Crystal, 
The spermatogenesis of an orthopteron, C. latebricola. S. with special refer 
enee to the accessory chromosome 97 
Notes on the amphibians of Cass Co., Michigan 105 
Title page 1 
Transpiration of emersed water plants, Measuring the 250 
Trypanosomes 25 
V. 
Vice Presidents 7 
W. 
Walker, Bryant, # 
A checklist of Michigan mollusca 121 
The concological survey of Michigan no 
Wenzel, Orrin J., Observations on the mammals of the Douglas lake region, Che- 
boygan Co., Michigan 136 
Wood, N. A., Results of the Mershon expedition to the Charity Islands, Lake Huron 
— mammals 131 
Z. 
Zygorhynchus moelleri, Occurence of in Michigan 
201 
