Heating and Lighting 53 



There were no large special exhibits during the year, but 

 there were several small displays of great interest, the most 

 important being that of the wireless telephone 

 f P ?k*L installed by the American Telephone and Tele- 



graph Company and the Western Electric Com- 

 pany, under the auspices of the Section of Astronomy, Physics 

 and Chemistry of the New York Academy of Sciences, in co- 

 operation with the National Research Council. Two other 

 exhibitions of particular interest were a series of Museum 

 posters designed by the girls of the Art Class of the Washing- 

 ton Irving High School, and one of posters teaching kindness 

 to animals, prepared by pupils under fifteen — mostly much 

 younger, and shown under the auspices of the Humane Educa- 

 tion Committee of the New York Women's League for 

 Animals. 



Many interesting exhibits could have been held had space 

 been available, but even the West Assembly Hall, which was 

 used for the exhibition of paintings, is now occupied by 

 exhibits. 



The projected School Service Building, Southwest Court, 

 would furnish room for such exhibits, while the space for 

 storage, work-rooms and studios would relieve some sections 

 of the Museum from the congestion now existing. 



The amount of electric current used annually continues to 

 increase, and this year totals 407,000 kilowatt hours, which 

 was produced at a net cost of 1.9 per kilowatt 

 Heating hour, a price made possible by the fact that dur- 



Uehting * n & c0 ^ weather the exhaust steam is used for 



heating the building. The boilers and electric 

 generators are in excellent condition in spite of their age, but 

 the engines are in need of repairs to bring them up to their 

 original efficiency. 



Provision was made by the city, in the budget for 192 1, for 

 the installation of the much needed panel board for the lighting 

 system of groups, and for the repair of the elevators. 



Many repairs have been made to the steam piping and 

 plumbing, which have been in use for many years and are 

 showing the effects of the constant wear to which they have 



