10 



Bii Exchange. 



ACADfiMIE iMPfeRIALE DES SCIENCES BELLES LETTRES ET AKTS IX BOR- 

 DEAUX. Actes. 3e Seris. 31e Annee. 18G9. 8vo. Paris. 18G9. 



KOXIGLICII BAYERISCIIEN' Akademie der Wis.sensciiafter ZU MtoCIIEN. 

 Sitzuugi^bericlUe der philosopliisch-pliilologisclien und liistorischeu Classe. 1871. 

 Heft I, II, III. 8vo pamphlets. Muachen, 1871. 8»tziing8bericlite der niathe- 

 matisch-plij-sikalischen Clause, 1871. Heft I. II, III. 8vo pamph. Miinchcn, 1871. 

 Die Aiifgabe des chemischen Uuterriehts gegeniiber der Anforderungen der Wis- 

 senschaft und Teclinik. Rede gehalten in der Offentlichen Sitzung der k. Akad- 

 emie der Wissenschaften am 25, Juli, 1871, von Dr. Emil Erlenmeyer. 4to pamph. 

 Miinchen. 1871. 



Massachusetts Historical Society. Collections, V^ol. x. Fourth Series. 1 

 vol. 8vo. Boston, 1871. 



Sociedad i>e Naturalistas Nes-Graxadixos. Esploracion entre San Jos6 

 De liieuta I el Rio Magdalena, 8vo pamph. Bogota, 1871. luforme de los Esi)lora- 

 dores del Territorio De San Martin. 8vo pamph. Bogota, 1871. Catalogo del 

 Estado S. De Antisquia, 8vo. pamph. Bogota. 1871. 



Socii5:Tfi Imi'^riale des Sciexces Naturelles de Cherbourg. Mcmoires, 

 Tome XV, 1870. 8v() i)amph. Clierbourg, 1870. Catalogue de la Bibliotlifeque, 8vo 

 pamph. Clierbourg, 1871. 



Publishers. American Naturalist. Christian World. Gloucester Telegraph. 

 Haverhill (iazette. Land and Water. Lawrence American. Little Giant. Lynn 

 Reporter. Lynn Transcript. Medical and Surgical Reporter. Nation. Nature. 

 Peabody Press. Salem Observer. Shoe and Leather Journal. Silliman's Jour- 

 nal. 



Eegular Meeting, Mond.\y, January 15th, 1872. 



The President in the chair. Records of preceding 

 meeting read. 



A TRIP TO CALIFORNIA BY R.VIL. 



J.J. II. Gregory, Esq., of Marblehead gave a familiar 

 talk n})on California, and the things to be seen al(jng the 

 route of the Pacific raih'oad, beginning at Oinaha. His 

 descriptions were plain, grMi)hic and interesting. Speak- 

 ing (;f agriculture in Utah, he said the process of irriga- 

 tion as carried on tiiere was far less costly than he had 

 supposed, as it consisted of the making of mere furrows 

 with the plough. He spoke of the elements of dissolu- 



