TWENTY-SECOND ANNUAL REPORT 113 
rium. The installation of a new salt water supply in 1908 im- 
proved the conditions for keeping marine forms of life to a re- 
markable degree. The enlargement of many of the exhibition 
tanks a year ago has yielded further good results in this respect. 
The completion of the Catskill Water System by the City has 
probably benefited the Aquarium, as the fresh-water collections 
were never in better condition. There has been less trouble from 
Saprolegnia fungus than usual, and this may be due to water, 
both purer and of lower temperature. No other aquarium main- 
tains such extensive exhibits of aquatic life, and it is doubtful 
if such exhibits have anywhere been kept with a greater degree 
of success. 
Marine and fresh-water fishes were collected as usual by 
the Aquarium employees from local waters. 
Three collections of tropical fishes were made in Florida 
during the summer, two of them being in co-operation with the 
Detroit and Philadelphia aquariums. This arrangement proved 
to be economical and advantageous, although the number of 
specimens brought to the New York Aquarium was somewhat 
less than usual. The work of collecting and transporting the 
tropical fishes was done by the New York Aquarium force, with 
its own equipment, the other institutions paying the expenses. 
During the summer the Aquarium made a number of ex- 
changes of fishes with the New Jersey Fish Commission. The 
specimens sent out were chiefly young whitefish from the Aqua- 
rium hatchery, and several hundred pearl roach, of which there 
was a surplus brought in by the Aquarium Collector. In Sep- 
tember the Aquarium lent to the New Jersey Commission fifty 
fresh-water fishes of seven species for exhibition at the Trenton 
Fair. 
The fishes received from New Jersey were numerous large 
trout from the hatchery at Hackettstown; a collection of 100 
fishes from Boonton Reservoir; and finally 150 fishes which had 
been on exhibition at Trenton. The fishes from Boonton and 
Trenton were transferred by a motor truck sent from the 
Aquarium. 
The Aquarium received from the New York State Fish Cul- 
turist thirteen eels and six muskallunge of large size, together 
with other fresh-water fishes. 
