94 NEW YORK ZOOLOGICAL SOCIETY 
with the Guide was to increase the amount of material without 
greatly extending the number of pages. This was accomplished 
by separating the book into signatures, removing the old cuts and 
substituting from two to four new pictures for each of the old 
ones. Heretofore this volume had been illustrated partly with 
cuts made for other publications, and not always with satisfac- 
tory results. As remodeled the new Guide contains more than 
twice the number of pictures contained in any previous edition, 
and at once it became so popular that the sales for the first two 
months paid for one-half its cost. The total number of copies 
issued has been 148,000. 
Annual Report.—The regular edition of the 15th Annual 
Report was issued without material changes, except that the 
order of the Treasurer’s Statements was re-arranged and made 
permanent. 
Zoologica.—One number of this publication appeared in 
1911, Volume 1, No. 7. It was devoted to a paper entitled, The 
Undescribed Juvenal Plumage of the Yucatan Jay, by C. William 
Beebe and Lee S. Crandall, illustrated by a plate in four colors. 
Publicity—The membership of the Society was increased 
during the past year by issues of illustrated folders, three of 
which were printed. Through the efforts of the Ladies’ Aux- 
iliary, the folder published for them yielded gratifying returns. 
Photography.—In addition to the extensive series of photo- 
graphs furnished the Field Columbian Museum, American 
Museum of Natural History and several other educational insti- 
tutions, the National Museum has purchased a large number for 
use in mounting specimens. Sculptors, painters, publishers and 
taxidermists are constantly availing themselves of our pictorial 
material, and innumerable requests are being made for pictures 
for the making of trade-marks, seals and dies. The usual work 
of keeping the indexes of albums, cuts and negatives has been 
thoroughly and systematically carried on. The gradual accumu- 
lation of an immense amount of material has necessitated a 
simple and accurate method of filing, not only for the purpose of 
carefully protecting our cuts and negatives, but also in order 
that all data may be instantly available. The Society has pro- 
vided for a temporary photograph gallery in the new Pelican 
House which will be erected in 1912. The entire roof and 
southern elevation will be constructed of ribbed glass, similar to 
that used in the east end of the Reptile House. Glass of this 
character has singular power of concentrating the rays of light 
