928 
the lake survey laboratory and the office of 
the director. The lower floor of the second 
building is given to embryology and _ bac- 
teriology. The notable feature of this floor 
is the (accidentally) constant temperature 
closet of the bacteriological laboratory. 
This is simply a pit beneath the stairway 
SCIENCE. 
[N.S. VoL. X. No. 260. 
surface midway between the two buildings. 
From this we get a flow of about 5,000 gal- 
lons per day. The water is received in a 
small tank and this is tapped by pipes lead- 
ing to each floor of the buildings where 
there are small pitcher pumps. The over- 
flow from the receiving tank leads into a 
Fic. 4. The Buildings of the Station from the Mouth of Cherry Creek. 
about a foot deep and cemented. The tem- 
perature without the use of ice did not vary 
more than 1° from 20 centigrade during 
the entire summer. The upper floor in one 
building is given to elementary zoology and 
that of the other to botany. We have 
small sheds for incubators away from the 
buildings to avoid the danger of fire. 
The bacteriological kitchen and the lecture 
room are separate tents. The most urgent 
need of the station is a building for general 
lectures and for embryology. 
The water supply deserves mention. 
Artesian water was struck 75 feet below the 
larger steel tank with covers. This tank is 
used for experiments with blind fishes. 
The overflow from this leads into pools 
constructed for experimental work. 
The springs about Winona Park flow in 
part into decorative pools. These will 
be used for the experiment in rearing 
cave animals in the light. One of them 
about thirty feet long is now inhabited by 
an experimental colony of blind Amblyop- 
sis where their habits can be observed 
without the restrictions imposed by the 
conditions found in a cave. 
In recognition of the fact that “the 
