The Ohio fh^aturalist, 
PUBLISHED BY 
The Biological Club of the Ohio State University. 
Volume III, FEBRUARY, 1903. No. 4. 
TABLE OF CONTENTS 
Osborn— Opportunities for Faunal Studies at the Lake Laboratory, Sandusky. . 363 
Cook— T he Development of the Embryo-sac; and Embryo of Agrostemma 
githago 365 
Schaffner — Atavism in the Watermelon 370 
Smith — A Hermit Thrush Song 371 
Derby— E arliest Observed Bird Migrations for Columbus 374 
H. O. — Entomological Notes 377 
Griggs— M eeting of the Biological Club 378 
OPPORTUNITIES FOR FAUNAL STUDIES AT THE 
LAKE LABORATORY AT SANDUSKY * 
Hhrbert Osborn. 
It is my desire to call attention to the rather exceptional oppor- 
tunities for pursuing faunal studies in the vicinity of Sandusky, 
which are made much more available by the location of a 
summer laboratory or biological station at that point. The labor- 
atory was located there by Professor Kellicott some years ago and 
the wisdom of this selection has been amply demonstrated by the 
wonderfully rich fauna which is found in the water and upon the 
various areas of land in that vicinity. So far the work has not 
been carried on so exhaustively as to complete the study of any 
one group of animals, although considerable progress has been 
made in certain lines. Professor Kellicott’s studies were particu- 
larly devoted to Rotifera, and in two or three papers on the 
“ Rotifera of Sandusky Bay ” he presents the result of his col- 
lecting in that group. The Protozoa have been studied during 
the past year by Professor F. L. Landacre and his preliminary 
report upon this group, showing 125 species, will indicate the 
richness of the Protozoan fauna. The fishes have been collected 
and probably most of the species are already recognized. The 
study of the birds is considered as having been fairly- com- 
plete. For the reptiles some work is being done and this 
group will doubtless be worked up within a few years. Many 
insects have been listed, over sixty species of Odonata having 
been recognized so far, but doubtless other forms are to be found,. 
Presented before the Ohio Academy of Science, Nov. 28 th, 1902 . 
