224 ANNALS NEW YORK ACADEMY OE SCIENCES 



EEPOET OF THE LIBRARIAN. 



The library of the New York Academy of Sciences has received during 

 the year ending December, 1911, through exchange and donation, 375 

 volumes and 1720 numbers. Important lacunas have been received from 

 the Tiflisser Physikalischen Observatorium, the Provincial Utrechtsch 

 Genootschap, L'Academie Imperiale des Sciences, Belles-Lettres et Arts 

 de Lyon, the North of England Institute of Mining and Mechanical 

 Engineers, the Eeal Academia de Ciencias y Artes de Barcelona, the 

 Physikalisch-Medicinische Gesellschaft zu Wiirzburg and the Naturhis- 

 torisk Forening i Kjobenhavn. Special acknowledgments are herewith 

 made to these six institutions for their generosity and assistance in sup- 

 plying their valuable and much needed publications. 



Respectfully submitted, Ralph W. Tower, 



Librarian. 



REPORT OF THE EDITOR. 



The Editor reports that during the past fiscal year there were issued 

 Part III, completing Volume XX, and pages 1-175 of Volume XXI. 



Respectfully submitted, Edmund Otis Hovey, 



Editor. 



REPORT OF THE TREASURER. 



RECEIPTS. 

 December 1, 1910 — November 30, 1911. 



Cash on hand, December 1, 1910 $3,259.74 



Income from investments : 



Interest on mortgages on New York City real estate. . $860.00 



Interest on railroad and other bonds 1,260.00 



Interest on bank balances 77.08 



2.197.08 



Life membership fee 100.00 



Active membership dues, 1909 $45.00 



" 1910 165.00 



" 1911 3,255.00 



3,465.00 



Associate membership dues, 1910 6.00 



" 1911 39.00 



45.00 



Sides of publications 154.24 



Subscriptions to annual dinner 106.00 



Total ' $9,327.06 



