ADDITIONS TO LIBRARY. 531 



Paetel, Fr. Die bisber veroffentlichen Familien und Gattungsnamen der 

 Mollusken. Berlin, 1875. I. V. Williamson Fund. 



Paleontologie Franchise, 25 duplicate numbers. Rathmell Wilson. 

 Same, le serie, Auimaux Invert. Ter. Juras. Liv. 29 and 30, 2e. 

 Vegetaux, Ter. Juras. Liv. 8 and 9. Wilson Fund. 



Parker, W. K. On the Structure and Development of the Skull in the 

 Pig (Sus scrofa.) The Author. 



Parkinson's Organic Remains. 3 Vols. Rathmell Wilson. 



Peabody, Alfred. Early Voyages to California. Henry Wheatland. 



Pfeffer, Dr. W. Die Periodischen Bewegangen der Blatt-organe. Leipzig, 

 1875. Purchased. 



Pfeiffer, Dr. Louis. Novitates conchologicse. 46, 47, Lief. Cassel. Wil- 

 son Fund. 

 Monographia Heliceorum viventium. Vols. I.-IV. Mon. Pneumo 

 napomorum viventium. 1 Vol. and Sup. 1 and 2. Vol. 7, Fasc. I., 

 II. Lipsias. R. AYilson, and Williamson Fund. 

 Nomenclator botanicus. Conscripsit Ludovicus Pfeiffer. Vol. I. 

 Fasc. 25, 27, 28, 29. Vol. II. Fasc. 25, 27. Cassellis, 1872. Vol. 

 I. Fasc. 46. Vol. II. Fasc. 46. Purchased. 



Philippics Fauna Molluscorum Regni utriusque Sicilise. Rathmell Wilson. 



Phipsou, Dr. T. L. The Utilization of Minute Life. Londou, 1864. I. V. 

 Williamson Fund. 



Photograph of Indian Skeletons exhumed at Marblehead, Nov. 10 and 11, 

 1874. Henry Wheatland. 



Pinart, Alph. L. Voyages a la C6te Nord-Ouest de lAmerique, executes 

 durant les annees 1870-72. Vol. I. Partie I. (Hist. Naturelle.) 

 Paris, 1875. I. V. Williamson Fund. 



Plancus' De Couchis Minus Notis, 1739. Rathmell Wilson. 



Plateau, Felix. Notice sur Charles Poelman. Brussels, 1875. The 

 Author. 

 Recherches sur les Phenomenes de la Digestion chez Insectes. Bruxelles, 

 1874. The Author. 



Plues, Margaret. British Grasses. 1867. I. V. Williamson Fund. 



Poey, Felipe. Poissons de l'He de Cuba. Especes Nouvelles. Salem. 

 The Author. 



Poggendorff's Biographisch-Literarisches Handworterbuch. Lief 1-6. 

 Rathmell Wilson. 



Poro's Malacologia della Provencia Comasca. Rathmell Wilson. 



Potiez and Michaud's Gallerie des Mollusques. Vols. 1 and 2, and Atlas. 

 Rathmell Wilson. 



Powell, M. Explorations of the Colorado River of the West and its tribu- 

 taries, explored in 1869, 70, 71, and 72, under the direction of the 

 Smithsonian Institution. Washington, 1875. Dep. of Interior. 



Prestwich, Joseph. The Past and the Future of Geology. London, 1875. 

 I. V. Williamson Fund. 



Pringsheim, Dr. N. Jahrbucher fur wissenschaftlichen Botanik. lOer 

 Band, ler Heft. Leipzig. 2er Heft. Purchased. 



Proctor, Richard. Transits of Venus. New York. Purchased. 



Proceedings at the Layiug of the Corner Stone of the New Public Build- 

 ings on Penn Square. 1874. Building Commission. 



Putnam, F. W. On some of the Habits of the Blind Crawfish, Cambarus 

 pellucidus, and the reproduction of lost parts. The Author. 

 Archaeological Researches in Kentucky and Indiana. 1874. The Author. 



Puton's Mollusques des Vosges. Rathmell Wilson. 



Rambosson, J. Astronomy. Translated by C. B. Pitman. New York. 

 Purchased. 



