ZOOLOGICAL SOCIETY BULLETIN. 



463 



THE WATER BOAT "JOSEPH MORAN." 



The new water supply in the reservoir has 

 nearly twice the salinity of the harbor water and 

 none of its impurities. 



The salinity of the open ocean varies only 

 between the limits 1.023 and 1.028, according to 

 location, temperature, evaporation, etc. 



In enclosed seas like the Caribbean, Mediter- 

 ranean and Red Sea it is highest, the salinity 

 being often 1.027 or 1.028. In the Black Sea 

 the surface water is often quite fresh, the bot- 

 tom water being dense like that of the Mediter- 

 ranean. 



In New York Harbor, at the Battery, our ob- 

 servations vary from 1.008 in winter, to 1.016 

 in summer when the Hudson is low. Fresli 

 water is represented on the salinometer by 1.000, 

 each unit in the third place, thousands of the 

 density. 



The sea water in our reservoir, brought from 

 near Sandy Hook Lightship, has a salinity of 

 1.021. It would have been more salty if it had 

 been procured farther off shore. C. H. T. 



T 



It is no small achievement for a Zoological 

 Park worker always to "look pleasant," and 

 cheerfully answer his share of the countless in- 

 quiries made by visitors. Nevertheless, for nine 

 years, politeness and courtesy to visitors in the 

 Zoological Park have been insisted upon. 



The following letter is by no means the only 

 one of its kind that we have received. It was 

 written by a man who is not a member of the 

 Society, and who, so far as known, is an entire 

 stranger to the members of the Zoological Park 

 force. W. T. H. 



A VISITOR'S OPINION. 



HERE are reasons why the letter printed 

 below is of special interest to members of tin- 

 Zoological Society. The life of a keeper of 

 live animals in a public park is filled witli wor- 

 ries and annoyances to an extent quite unknown 

 to the public. Worse even than the perverse 

 ways of the animals themselves are the annoy- 

 ances to which attendants are almost constantly 

 subjected by the few unruly visitors who wilfully 

 annoy animals, or feed them on the slv. 



POSTAL TELEGRAPH-CABLE COMPANY. 



Office of the Superintendent of Tariffs, 

 Postal Telegraph Building, 253 Broadway, 



Isaac Smith, 



Superintendent. 



New York, August 17th, 1908. 



Mr. William T. Hornaday, Director, 

 Zoological Park, 



New York City. 



My dear Sir: — 



I visited the Bronx Zoo on Saturday, the 

 15th, and one thing that struck me was the ab- 

 solute and uniform courtesy on the part of the 

 employees at the Zoo. It was so refreshing to 

 meet and have courteous treatment extended by 

 each employee of the Zoo, spoken to, or of whom 

 any information was asked, that I feel that it is 

 a pleasure to bring the matter to your attention. 



I spent about 4 hours at the Zoo, and after 

 being treated so courteously myself, I made it a 

 part of my business to observe whether other 

 people received the same courteous treatment, 

 and I am glad to say that all persons received 

 the same courteous treatment that I did. 



Respectfully, I. Smith. 



THE AQUARIUM RESERVOIR. 



The dotted lines mark the boundaries of the 



structure in the center is the entrance to th 



reservoir. The 

 e valve room. 



