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 

 Saprolegyiia 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. 



