70 Exchanges — Library. 



J. P. IDDINGS (the author), Chicago, 111. 



Extrusive and Intrusive Igneous Rocks as Products of Magnetic Dif- 

 ferentiation. 1896. 



Absarokite-Shosonite-Banakite Series. 1895. 

 F. H. LATTIN (the editor), Albion, N. Y. 



TheOologist. Vol. XIV, Nos. i-ii. 1897. 



Premium List Supplement. 1897. 

 BENJAMIN S. LYMAN (the author), Philadelphia, Pa. 



Compass Variation affected by Geological Structure in Bucks and 

 Montgomery Co., Pa. 1897. 



The Gradienter. 1872. 



The Future of Japan in its relations with China and Russia. 1897. 



Against adopting the Metric System. 1897. 



E. S. MORSE (the author), Salem, Mass. 



Korean Interviews. 1897. 

 D. P. (EHLERT (the author), Paris, France. 



Uralichas Ribeiroi des Schistes D' Angers. 1896. 



Resume des derniers travaux sur l'organisat-et le development des 

 Trilobites. 1896. 



Fossiles Devoniens de Santa Lucia (Espagne). 1897. 



C. R. ORCUTT, San Diego, Cal. 



The West American Scientist. Vol. X, Nos. 81, 82. 1896. 

 C. H. PECK, Albany, N. Y. 



48th Annual Report State Botanist of N. Y. 1895. 

 CHARLES S. PROSSER, Shenectady, N. Y. 



Comparison of the Carboniferous and Permian Formations of Ne- 

 braska and Kansas. 1897. 

 I. C. RUSSELL (the author), Washington, D. C. 



The Influence of Dedris on the flow of Glaciers. 1896. 



Two Essays on Igneous Intrusions. 1896. 

 WALTER F. WEBB, Albion, N. Y. 



Journal of the Museum. Vols. I, II, III, Nos. 1-7, 9, 10. 1894-1897. 

 Dr. LORENZO G. YATES, Sacramento, Cal. 



Catalogue of California Fossils. By J. G. Cooper. Pts. II-V. 1894. 



Plates 1-5 Aboriginal Pipes. The Author. 

 " 1-7 Shell Money of California. 



INSTITUTIONS AND SOCIETIES. 



ACADEMIE DES SCIENCES ET LETTRES DE MONTPELLIER, 

 France. 

 Memoires. Vols. I, II. 1893-1896. 

 ACADEMIA REAL DES SCIENCIAS DE LISBOA (Lisbon), Portugal. 

 Journal de Sciencias Mathematicas, Physicas e Naturaes. Tome IV, 

 N. 16. 1897. 



ACADEMIE ROYALE DES SCIENCES, DES LETTRES ET DES 



BEAUX-ARTS DE BELGIQUE, Bruxelles, Belgium. 

 Annuaire. 62, 63. 1896-1897. 

 Bulletins. 66me Annee, 3me Ser. T. XXXI, XXXII, XXXIII. 



1896-1897. 

 Reglements et Documents concernant les trois classes. 1896. 

 Annales Musee Royale D'Histoire Naturelle de Belgique. Tomes I- 



XIV ; Plates to Tomes II, III, V, VI, VIII-XII ; Atlas to 



Tomes I, IV, VII, XIII, XIV 1877-1896. 



