TWENTIETH ANNUAL REPORT LG 
and pump rooms on the ground floor is equal to one-fourth of 
the space now devoted to glass-fronted tanks. The same is true 
of the tank room space above as compared with the series of 
glass-fronted tanks on the gallery. 
The space now occupied by machinery on the ground floor 
would afford room for several glass-fronted tanks much larger 
than any now in the building, while the space above them would 
provide the Aquarium with a feature it has never had—a well 
lighted exhibition room for the smaller and more delicate forms 
of aquatic life. The outside machinery plant need not encroach 
upon Battery Park as it could be built upon the shoal behind 
the Aquarium. 
LABORATORY. 
To add another story to the front of the Aquarium would 
be a comparatively simple matter and would afford ample room 
for laboratory work not possible under present conditions. 
There is nearly always at the Aquarium a large amount of 
material from both fresh and salt water available for biological 
investigation. This material is not being utilized for scientific 
investigation for lack of facilities for studying it. 
A well equipped biological laboratory would be of great 
benefit to the Aquarium itself, as well as to science. There is 
but little known of the life of most of our aquatic animals. The 
embryology, physiology and adaptations of these forms offer 
interesting fields for investigation. 
The Aquarium has frequent requests from investigators for 
assistance in the matters of laboratory space and material. It 
is even now sharing its limited office space with a special inves- 
tigator of the United States Bureau of Fisheries and material 
is constantly being supplied for researches conducted under the 
auspices of our city educational institutions. 
Among the well known investigators who have been sup- 
plied are Professor Loeb of the Rockefeller Institute, Professor 
McClure of Princeton University and Professor Morgan of 
Columbia. 
Considerable quantities of small sea shore invertebrates are 
annually given to school teachers for class work. 
The Aquarium should be so equipped that it could take care 
of investigators in a way that would be creditable to the Zoologi- 
cal Society. 
