1887.] 



NATURAL SCIENCES OF PHILADELPHIA. 441 



Dobson, G. E. Description of a new species of Vesperugo from North America. 



8vo T. 1886. 

 Description of a new species of Soricidae in the collection of the Genoa 



Civic Museum. April. 1887. Svo T. The Author. 



Dollfus, Gustave & Ph. Dautzenberg. Etude preliminaire des coquilles fossiles 



des Faluns de la Touraine. 8vo T. Paris, 1886. G. Dollfus. 



Dolley, Charles S. The technology of bacteria investigation. 12mo. Boston, 



188.5. I. V. Williamson Fund. 



Dubois, A. Compte Rendu des observations ornithologiques faites en Belgique 



pendant I'aanee 1885. 8vo T. 

 Description de deux nouvelles espSces d'oiseaux. 8vo T. Bruxelles, 1887. 



The Author. 

 Dudley, WiUiam R. The Cayuga flora, Part I. Svo. Ithaca, N. Y. 1886. 



Chas. E. Smith. 

 Eigner, A. Expedition der K. R. geographischen Gesellschaft. Beobachtungen 



der russischen Polarstation an der Lenamiindung. II Th. Meteorolo- 



gische Beobachtungen, I Lief. 4to. The Society. 



Elliott, Henry W. A report upon the condition of affairs in the Territory of 



Alaska. 8vo. Washington 1875. In Exchange. 



Encyclopsidia Britannica. 9th Ed. XXI, XXII. I. V. Williamson Fund. 



Encyklopaedie der Naturwissenschaften. le Abth. 49-5.3 L.; 2e Abth. 39-45 L. 



I. V. Williamson Fund. 

 Engler, A. & K. Prantl. Die natiirlichen Pflanzen Familien nebst ihren Gattungen 



und wichtigen Arten insbesondere der Nutzpflanzen bearbeitet etc. I^. 



1-11. I. V. Williamson Fund. 



Erichson, W. F. Naturgeschichte der Insecten Deutschland. I Abth., 3er Bd. 



2e A., 2e L. I. V. Williamson Fund. 



Ettinghausen, Constantin Ritter v. Die Blatt-Skelete der Dikotyledonen. Folio. 



Wien, 1861. K. K. geol. Reichs., Wein, in exchange. 



Everhart, Edg. Infant food and infant feeding. May 17, 1887. 8vo T. 



The Author. 

 Exploration Internationale des Regions Polaires, 1882-83 et 1883-84. Expedi- 

 tion Polaire Finlandaise. 4to. Society of Sciences of Finland. 

 Fairchild, Herman Le Roy. History of the New York Academy of Sciences. 



May 10, 1886. 8vo. New York, 1887. J. H. Redfield. 



Fischer, P. Manual de Conchyliologie. Fasc. XI and Expl. des Planches. 



The Author. 

 Fischer,_P. & H. Crosse. Mis. Scient. au Mex., Rech. Zool., 7me. Partie. 



Etudes sur les mollusques terrestres. The Authors. 



Fish and Game Commissioners of Massachusetts. Report for the year ending 



December 31, 1886. 8vo T. The Commissioners. 



Flower, W. H. A general guide to the British Museum (Natural History.) Svo 



T. London, 1887. The Trustees. 



Fokker, A. P. Untersuchungen uber Heterogenese, I and II. Svo. Groningen, 



1887. I. V. Williamson Fund. 



Folin, Le Marq. de. Sous les Mers. ]2mo. Paris, 1887. 



I. V. Williamson Fund. 

 Folin, L. de and L. Perier. Les Fonds de la Mer. Vol's. I, II, III, IV, 1-12. 



Svo. Paris 1867-1886. I. V. Williamson Fuud. 



Forel, Auguste. Diagnoses provisoires de quelques especes nouvelles de formis 



de Madagascar, recoltees par M. Grandidier, ler. Mai, 1886. Svo T. 

 Indian ants of the Indian Museum, Calcutta, No. 2. 1886. Svo T, 

 Experiences et remarques critiques sur les sensations des insectes. 2me 



Partie, 1887. Svo T. The Author. 



Frazer, Persifor. The address of Vice-President G. K. Gilbert before Section E., 



A. A. A. S., Columbia College, New York, August 10, 1887. 



The Author. 

 Fremont, John Charles. Geographical memoir upon Upper California. 8vo. 



Washington, 1848. In Exchange. 



29 



