THIRTEENTH ANNUAL REPORT Ay 
Bronx River and in Westchester County, and to the existence of 
the water system of Bronx Park in New York City. No other 
scheme has been, or can be, devised as economical as the purchase, 
and acquisition by gift, of the lands along the Bronx Valley, 
and their dedication to Park purposes. It is probably only a ques- 
tion of time when this project will be carried through. 
NEW YORK AQUARIUM. 
The New York Aquarium is now on a better basis than ever 
before, a new sea-water system having made possible the keeping 
of many kinds of fishes and invertebrates not hitherto exhibited 
here. 
An underground reservoir of 100,000 gallons capacity was 
filled with pure sea water in July, 1908, since which time the 
marine species have been kept in healthful condition, numerous 
delicate forms adapting themselves perfectly to the conditions of 
captivity. Early in the summer of 1909 it will be possible to 
stock the tanks with still more attractive examples of sea life, now 
that the use of the stored sea water is well understood. 
This splendid water supply relieves the Aquarium of the handi- 
cap under which it formerly operated when salt water had to be 
pumped from our sadly polluted harbor. 
Each year since the Zoological Society took charge of the 
Aquarium, it has, with the ready cooperation of the City, made 
that great museum of aquatic life more and more popular with 
the people. Further improvements are in progress, chiefly in the 
way of lighting the building, which will add to its attractiveness. 
The latest arrivals are a green turtle from the West Indies, 
weighing 400 pounds, and a collection of fishes from Lake 
Huron. The collection of tropical fishes, now for the first time 
successfully wintering at the Aquarium, is very attractive in form. 
and color. 
On the forenoon of September 28, 1908, the Fourth Interna- 
tional Fisheries Congress was specially entertained at the Aqua- 
rium. Many of the foreign delegates were surprised to find that 
New York maintained a distinctly larger and better stocked 
aquarium than is to be found anywhere in Europe. It collects and 
succeeds in keeping aquatic forms, the exhibition of which is 
not attempted elsewhere. 
NATIONAL COLLECTION OF HEADS AND HORNS. 
During the past year many important specimens have been pre- 
sented to the National Collection of Heads and Horns. The 
