TWENTY-SECOND ANNUAL REPORT 95 



chemicals. An urgent request of one of the largest manufac- 

 turers of photographic supplies in America, — and perhaps in the 

 world, — for old negative glass, is a striking example of the part 

 that foreign materials have played in American-made products. 

 A good stock of several important chemicals was obtained by 

 this department at the beginning of the war, and by practicing 

 the strictest economy it is yet available. 



Bulletin. — Six numbers of the Zoological Society Bulletin 

 were issued in 1917. Inasmuch as the Park is the chief source 

 of supply for material for the Bulletin, the lack of new acces- 

 sions has been keenly felt. Mr. Ellis Joseph's collection from 

 Australia, and the collections of the Research Station have come 

 in most opportunely. A large part of the paper stock, purchased 

 early in 1917, is yet available, and will last for several months 

 of this year. 



Animal Report. — The report for the past year was issued 

 as heretofore. 



Zoopathologica. — Dr. George A. MacCallum contributed the 

 second number of this publication entitled Some New Forms of 

 Parasitic Worms. 



Tropical Wild Life. — The Society's first year's work at the 

 Station in the tropics of Guiana has been recorded in a handsome 

 octavo volume of over 500 pages. The text is by Mr. Beebe, Mr. 

 Hartley and Mr. Howes and the illustrations, numbering 143, 

 are from photographs by the authors. A careful review of the 

 book will be printed in the May, 1918, number of the Bulletin. 



Appended is a statement of the work of this department 

 in 1917: 



Lantern slides sold 287 



Enlargements 29 



Transparencies 5 



Prints for Albums (Aquarium) 42 



Prints for Albums (Park) 267 



Prints for Publications 355 



Prints sold, and used for miscellaneous purposes. .1,478 



Total 2,465 



