532 ADDITIONS TO LIBRARY. 



Rathke's Entwicklungsgesckichte der Wirbelthiere. Rathmell Wilson. 

 Ravenel, Catalogue of Recent and Fossil Shells in the Cabinet of the late 



Edmund Ravenel. The Author. 

 Reeve, Lovell. Conchologia Iconica. Parts 318-323. London. Wilson 



Fund. 

 Reclus, Elis6e. The Earth. New York. Purchased. 



The Ocean, Atmosphere and Life. 2 vols. London. Purchased. 

 Reichenbach's Icones avium. Rathmell Wilson. 



Speciellen Ornithologie. 5 numbers. Rathmell Wilson. 



Heinrich Gustav. Xenia Orchidacea. 2er Band, 9er Heft. lOer Heft, 



1874. Purchased. 



Repertorium der Naturwissenchaften. 1. Jahrg. Nos. 1-6, Jan.-Juni, 



1875. The Editor. 



Report of the Commission of Engineers appointed to investigate and report 



a permanent plan for the Reclamation of the Alluvial Basin of the 



Mississippi River subject to Inundation. Engineer Depart. U. S. A. 



Upon the Invertebrate Fossils collected by the Expedition of 1871-2-3. 



With descriptions of new species. Engineer Department, 

 Upon the Ornithological specimens collected in the years 1871-2-3. 



Washington, Dept. of Interior. 

 Of the Committee appointed by the Board of Public Education to 

 inquire into the sanitary condition of the Schools of the First District 

 of Pennsylvania. Louis Wagner. 

 On the Meteorological, Magnetic, and other Observatories of the Do- 

 minion of Canada, 1875. Abstracts and Results from 1841-1871 inc. 

 2 vol. The Magnetic Observatory. 

 On the Niagara Falls Museum, with photograph of Mummies. Thos. 

 Barnett, 

 Reuter, F. Observations Meteorologiques faites a Luxembourg. Tome 



2me. Institute Royal Grand-Ducal de Luxembourg. 

 Ribot, M. Heredity. From the French of Th. Ribot. New York. Pur- 

 chased. 

 Ridgway, Robt. Birds of Colorado. Henry Wheatland. 



List of Birds observed at various localities contiguous to the Central 



Pacific R. R. The Author. 

 Monograph of the Genus Leucosticte, Swns. or Gray-crowned Finches. 



Washington. The Author. 

 Outlines of a natural arrangement of the Falconidre. Washington. 

 Monograph of the Genus Leucosticte or Gray-crowned Finches. Wash- 

 ington. Department of Interior. 

 Notes on the Bird Fauna of the Salt Lake Yalley. Henry Wheatland. 

 Rodwell, G. F. The Birth of Chemistry. London. Purchased. 

 Rogers, 2d Annual Report on the Geology of Pennsylvania, 1838. Wilson 



Library. 

 Rothe, Prof. Dr. C. Die S'augethiere Niederosterreichs einschleisslich der 



fossilen Yorkomnisse. Wien, 1875. I. Y. Williamson Fund. 

 Rousset. Observations on the Sea or Pile Worm. London. Prof. Halde- 



man. 

 Russ, Dr. Karl. Die fremlandischen Stubenviigel ihre Naturgeschichte, 



Pflege unci Zucht. le Lief. Hannover, 1875. Purchased. 

 Riitimeyer, L. Die Yeranderungen der Thierwelt in der Schweiz. Basel, 



187G. I. Y. Williamson Fund. 

 Ruy, L. Das Pflanzenleben des Meeres. I. Y. Williamson Fund. 

 Sachs, Julius. Text-book of Botany, Morphological aud Physiological. 

 Translated by Alfred W. Beunet aud W. T. Thiselton Dyer. Oxford, 

 1875. I. Y. Williamson Fund. 



