24 College of Forestry 
and feeding habits of this group being also considered; IV, 
Mollusks as Food of Fish, in which fie stomach contents & 
many Oneida Lake, as well as other, fishes are deseribed, and 
a resume given of our present knowledge concerning the use 
of this class of animals as food for fishes ; V, Mollusks as 
Parasites of Fish, in which the development of young clams 
as parasites of fishes is considered ; VL Enemies of Fresh 
Water Mollusks, in which are noted those animals that feed 
upon or affect mollusks in any manner; VIT, The Classifi- 
eation of Oneida Lake Mollusea, in which the different species 
of mollusks found in Oneida Lake are considered from a sys- 
tematic standpoint and their peculiarities of station or dis- 
tribution commented upon; VIII, Plants and Animals 
associated with Mollusca, in which the animals found 
in association with the mollusks, as well as those obtained 
from the stomachs of fishes, are listed and commented upon ; 
and IX, Summary and Discussion, in which the work is sum- 
marized, certain ideals of biological research are discussed, 
and suggestions are made for further work on the lake. A 
rather full Bibliography completes the report. For the bene- 
fit of those students who may wish to carry on studies such 
as are outlined in this report, the species of mollusks inhabit- 
ine Oneida Lake have been figured. The authority for the 
names of animals listed in the body of the work will be found 
in chapters VIT and VIII. 
Equipment and Methods of Work. September and a part 
of October were given to studying the biology of the lake. 
A laboratory was established on the north side of the outlet 
near Brewerton (Central Square rural delivery), with an 
adequate equipment for carrying on field studies. The lake 
studies were made in a gasoline launch and in a large, round- 
bottom rowboat of light draft. The map of. Oneida Lake, 
Chart No. 4, New York State Canals, U. S. Lake Survey 
Maps, issued by the War Department, was in constant use 
for establishing stations and making observations. The use 
of this map saved a large amount of time that would other- 
wise have been spent in compiling a rough map and in mak- 
