124 - The American Naturalist. [August,. 
typieal situations, and from these, and from Phelps and Thompson 
Lakes a little distance away, collections of all descriptions are made: 
at regular intervals for a comparative study of the organic life—the 
relative abundance of the species at different seasons of the year, and 
the general system of conditions by which it is affected. 
* The plan of operation contemplates continuous work at this station 
for several years, with especial reference to the effect of the enormous 
overflow and rapid retreat of waters characteristic of the Illinois and. 
the Mississippi system generally. Continuous studies are made of the: 
food of all the species collected, with final reference to the feeding 
habits and food resourges of the native fishes of the region. Temper- 
atures are taken daily, and analyses of the waters of the lake and 
river at the various stations are being made at regular intervals by the 
chemical department of the University. 
This station will be held open for graduate students in zoology and 
botany wishing to take their advanced degrees in zoological or botani- 
cal lines. Such students, choosing to pursue their studies at Havana 
will be furnished with every facility for the original investigation of a 
large variety of subjects, and arrangements will be made by whiclr the 
other studies of their postgraduate courses may be carried forward 
without embarrassment. 
The station is further capable of sufficient expansion to accommo- 
date other investigators from the University and from the University 
summer scnool, for whose benefit excursions will be arranged as may 
be found profitable. 
This is the first inland aquatic biological station in America manned 
and equipped for continuous investigation ; and the first in the world 
to undertake the serious study of the biology of a river system.—From 
the Illini, June 6, 1894. 
Cook's Excursion to Greenland.— The excursion to visit 
Greenland organized by Dr. Frederick A. Cook, anthropologist of 
Peary's first expedition, consists of fifty persons, of whom a good part 
are students of science. They have chartered the steamer Miranda 
and will sail directly for the far north, stopping at Cape Breton, and 
at two or three places in Labrador and Southern Greenland, reaching 
Inglefield Gulf about the first of August. Among the scientific mem- 
bers are Professor W. H. Brewer of Yale College, who will go the 
whole round; Professor B. C. Jillson of Pittsburg, Pa., who with Pro- 
essor G. F. Wright and son, of Oberlin, O., and a party of six, will 
stop off in Umenak Fiord about latitude 71, to study the border of the 
ice sheet, the neighboring glacial deposits, the glaciers entering the 
