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. 



Public it II. — 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. 



Photographij. — 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 



