248 Presents. [Jan. 27, 



tion de nombreux phenomenes qui sont une consequence de la 

 vieillesse. 4to. 1875. The Author. 



Giedroyc (Prince Romuald) Be'sume de l'Histoire du Portugal au xix e 

 siecle. 8vo. Paris 1875. The Author. 



Merk (Conrad) Excavations at the Kesslerloch, near Thayngen, Swit- 

 zerland, a Cave of the Reindeer period, translated by J. E. Lee. 8vo. 

 London 1876. The Translator. 



Pickering (C.) The Geographical Distribution of Animals and Plants 

 (United-States Exploring Expedition. Vol. XV.). 4to. Boston (U.S.) 

 1854. The Author. 



Plantarnour (E.) et A. Hirsch. Determination Tele'graphique de la Dif- 

 ference de Longitude entre la Station Astronomique du Simplon et 

 les Observatoires de Milan et de Neuchatel. 4to. Geneve 1875. 



The Author. 



Shanks (W.) Papers from the Proceedings of the B-oyal Society on 

 Constants and Primes, with MS. additions. 8vo. London 1867-75. 



The Author. 



Silliman (B.) American Contributions to Chemistry. An Address, 

 August 1, 1874. 8vo. Philadelphia 1874. The Author. 



Spiller (P.) Die Urkraft des Weltalls nach ihrem Wesen und Wirken 

 auf alien Naturgebieten. 8vo. Berlin 1876. The Author. 



January 27, 1876. 



Transactions. 



Berlin : — Physikalische Gesellschaft. Die Eortschritte der Physik im 

 Jahre 1870. Jahrgang XXVI. 8vo. 1874-75 ; Jahrg. XXVII. 

 1871. Abth. 1. 8vo. 1875. The Society. 



Lund :— Universitet. Ars-Skrift. 1871 (Theologi, Mathematik, Phi- 

 losophy ; 1872 (Math., Philos.); 1873 (Math., Philos.). 4to. 

 1871-74. The University. 



Melbourne : — B-oyal Society of Victoria. Transactions and Proceed- 

 ings. Vol. XL 8vo. 1874. The Society. 



Milan : — Accaclemia Eisio-Medico-Statistica. Atti. Anno 31. 8vo. 

 1875. The Academy. 



Newcastle-upon-Tyne : — Natural-History Transactions of Northum- 

 berland and Durham. Vol. V. Part 2. 8vo. 1875. 



The Tyneside Naturalists' Eield-Club 



Philadelphia : — Eranklin Institute. Journal. Vol. XCIX. No. 5, 6 

 Vol. C. No. 1-6. 8vo. 1875. The Institute 



St. Louis : — Academy of Science. Transactions. Vol. III. No. 2 

 8vo. 1875. The Academy 



