474 PROCEEDINGS OF THE ACADEMY OF [1888. 
Piaget, E. Les Pediculines. Essai monographique. I Text, TI Planches, Supple¬ 
ment, 3 vols. 4to. Leide, I8S0-1885. E V. Williamson Fund. 
Pietch, J. Herleitung und Ausprache der wissenschaftlichen Namen in dem E. 
F. von Homeyer’ schen Verzeichnisse der Vogel Deutschlands. Wein, 1888. 
I. V. Williamson Fund. 
Pilling, J. C. Bibliography of the Eskimo language. 8vo T. Washington, 188/. 
Bibliography of the Siouan languages. 8vo T. Washington, 1888. 
Smithsonian Inst. 
Pilsbry, H. A. Description of a new Hydrobia, with notes on other Rissoidae. 
8vo T. 1886. The Author. 
Pini, Napoleone. Molluschi terrestri e d’acqua dolce viventi nel terntorio di 
Esjno. 8vo. Milano, 1876. I- V. Williamson Fund. 
Pliny, C. C. Plini Secundi naturalis histone Libri XXXVII. Recognavit atque 
indicibus instruxit Ludovicus Janus. Vol. I. Libr 1—VI. Editio altera 
denuo recognita. 12mo. Lipsia. Dr. B. Sharp. 
Pope, John. A tour through the southern and western territories of the United 
States of North America, the Spanish dominations on the River Missis¬ 
sippi, and the Floridas, the countries of the Creek nations and many 
uninhabited parts. 8vo. Richmond, 1792. (Reprint 1888'. 
• I. V. Williamson Fund. 
Report on artesian well experiments. Messages and documents, 1859-9. 
Part II. In Exchange. 
Popper, Julius. The Popper Expedition. Tierra del Fuego. A lecture delivered 
at the Argentine Geographical Institute, March 1887. Buenos Aires, 
1887. I. V. Williamson Fund. 
Portland catalogue of the Maine plants. 8vo T. Portland, 1868. 
Portland Society of Natural History. 
Portugal. Sec^ao dos trabalhos geologicos de Portugal. Communicagoes. I, 2. 
Description de la faune jurassique du Portugal, II, 2. pp. 37-76. 
The Survey. 
Poulsen. V. A. Botanical microchemistry, an introduction to the study of vege¬ 
table histology. Translated with the assistance of the author and consider¬ 
ably enlarged by William Trelease. 8vo. Boston, 1886. 
I. V. Williamson Fund. 
Prestwich, Joseph. Geology, chemical, physical and stratigraphical. Vol II. 
Stratigraphical and physical. 8vo. Oxford, 1888. 
I. V. Williamson Fund. 
Providence Franklin Society. Report on the geology of Rhode Island. 8vo T. 
Providence, 1887. Prof. Angelo Heilprin. 
Purdie, Alex. Colonial Museum and Geological Survey Dept. Studies in biology 
for New Zealand students. No. 3. The anatomy of the common mussels 
(Mytilus latus, edulis and Magellanicus.) 8vo T. New Zealand, 1887. 
The Geological Survey of New Zealand. 
Turgold, A. Die Diamenten des mineralogischen Museums zu Dresden, 1882. 
The Author. 
Quenstedt, F. A. Die Ammoniten des Schwabischen Jura. H. 17-19. Text 
and Atlas. I. V. Williamson Fund. 
Quilter, H. E. Land and fresh water mollusca of Leicestershire. April, 1888. 
The lower lias of Leicestershire. 8vo T. Feb. 1886. 
The metamorphosis of Galeruca nymphea Lin. Oct. 20, 1886. 
The Author. 
Rabenhorst, L. Kryptogamen Flora von Deutschland, Oesterreich und der Schweiz. 
1 Bd., 3 Abth. 29, 30 L; 3er Bd. 11 L; IV, 8. 
I. V. Williamson Fund. 
Rafter, Geo. W. How to study the biology of a water supply. 8vo. n. d. 
On the use of the amplifier. 8vo T. n, d. The Author. 
Ragonot, E. L. Diagnoses of North American Phycitidae and Galleriidae. 8vo 
T. Paris, 1887. The Author. 
