1883.] NATURAL SCIENCES OF PHILADELPHIA. 353 



Newton, Alf. A history of British birds. 4th Ed., Pt,. 15. I.V.Williamson Fund. 

 Newton, John. The fortifications of to-day. 1883. Engineer Dept., U. S. A 

 New York State Library. 62d, 63d and 64th annual reports. 



Regents of the University. 

 New York State Museum of Natural History. 31st annual report. 1878. 



Regents of the University. 

 New Zealand. Colonial Museum and Geological Survey of. 17th annual 

 report. 1882. The Directors. 



Nordenskiold, A. E. Vega-Expeditionens Vetenskapliga lakttagelser bear- 

 betade af Deltagare i Resan och Andra Forskare utgifna af A. E. 

 Nordenskiold. Forsta Bd., 1882. 

 Vegas Fiird Kring Asien och Europa. I and II. Jos. Jeanes. 



Ncirner, C. Die Kriitzmilbe der Hiihner. 

 Syringophilus bipectinatus. 



Beitrag zur Behandlung mikroskopischer Priiparate. 

 Analges minor eine neue Milbe im Innern der Federspulen der Hiihner. 

 Beitrag zur Kenntniss der Milbenfamilie der Dermaleichiden. 1883. 



The Author. 

 Norske Nordhavs-Expedition, 1876-78, VI— IX. 1882. 



The Norwegian Government. 

 Norwegische Commission der europiiischen Gradmessung, Publication der. 

 Geodatische Asbeiten, H. 1-3. Vandstandsobservationer, H. 1. 



The Commission. 

 Ochsenius, Karl. Die Region der Schott's in Nordafrika und das Sahara- 

 Meer. I— VII. 

 Die Bildung von Steinsalzflotzen. The Author. 



Opening ceremonies of the New York and Brooklyn Bridge, May 24, 1883. 

 Packard A. S. On the classification of the Linnean Order of Orthoptera and 

 Neuroptera. 

 A revision of the Lysiopetalidse, a family of Chilognath Myriapoda, with 



a notice of the genus Cambala, 

 Repugnatorial pores in the Lysiopetalidee. 



A new species of Polydesmus with eyes. The Author. 



Paetel, Fr. Catalogue der Conchylien-Sammlung. 1888. The Author. 



Pagenstecher, H. Alex. Allgemeine Zoologie oder Grundgesetze des thierischen 



Baus und Lebens. ler-4er Th. 1875-^81. I. V. Williamson Fund. 



Paget, James. Descriptive catalogue of the pathological specimens contained 



in the Museum of the Royal College of Surgeons of England. 2d Ed., 



by Sir James Paget, with the assistance of James Frederic Goodhart, 



M. D., and Alban H. G. Doran. Vol. 2, 1883. The Councilof the College. 



Pal^ontologie Fran9aise. Ire Ser. An. Invert. Terrain Jurassique. Livr. 32, 



54-64. Terrain Cr4tace. L. 29. Wilson Fund. 



Palseontograpica. 29er Bd., 2e-6e Lief. Suppl. II, 4te Abth., Text und Atlas. 



Suppl III, L. 10-11. Wilson Fund. 



Parrish, S. B., and W. F. Supplementary list of the plants of Southern 



California. The Auihor. 



Paulucci, M. Nuova stazione della Clausilia lucensis. 1877. 



Elude critique sur quelques Hyalina de Sardaigne et description d'une 



nouvelle espcice, 1879. 

 Molluschi fluviatili Italiani inviati come saggio alia Esposizione inter- 



nazionale della Pesca in Berlino. 1880. 

 Osservazioni critiche sopra le specie del genere Struthiolaria Lamarck. 



1877. Ancora del genere Struthiolaria Lam. 2" Articolo. 1877. 

 Description d'une Murex fossile du terrain tertiaire subapennin de la 



Valine de I'Elsa. 

 Fauna Italiana. Communicazioni malacologiche. Art. 1-7, 1877-1880. 

 Materiaux pour servir a I'^tude de la faune malacologique terrestre et 

 fluviatile de V Italic et de ses lies. 1878. The Author. 



