( 355 ) 

 ivoundedby pack animais; by G. -A. Otis. Washington, government prin- 

 ting office, 1877; iii-4° relié. 



Geoloijical Survey of the Slale of New-York. Palœontology illustrations oj 

 devo)iian fossils : Gasleropodn, Pleropoda, Cephalopoda, Ciiislacea and curais 

 oftlie iipper Helderberg, Hamillon and Chemung groiips; lijS. Hall. Albany, 

 WeecI, Parsons, and C°; New-Yoïk, Bierstadt, 1876; in-4° relié. 



Officiai copy. Qiiurterlj ivealher report oflhe meieorological ojfice; Part IV, 

 october-december 1874. London, 1877; in-4''. 



The ainerican ephemeris and naulical Almanac for ihe jear 1879. Was- 

 hington, Bureau of navigation, i876;in-8°. 



0/1 the possibdity of transit observation ivithout personal error; by S. -P. Lan- 

 GLET. Sans lieu ni date; opusc. in-S". (From the American journal of 

 Science and Arts, .vol. XIV, july 1877.) 



On the construction of the canon of sines, for the décimal division of the 

 quadrant ; by Edward Sang. Sans lieu ni date; br. in-8". (From the Pro- 

 ceedings of the royal Society ofEdinburgh.) 



Tlie glacial period in the soulhern hémisphère; by Thomas Belt. London, 

 1877; br. in-8°. 



ERRATA. 



(Séance du 16 juillet 1877.) 



Page 126, ligne 27, au lieu de Niimniulites, Hanlkeni, lisez Nummulites Hanlkeni 

 Paye 127, ligne 12, au lieu de Novae, lisez Noîe. 



(Séance du 3o juillet 1 877.) 

 Page 261, ligne i6, au lieu rfc fossiles, lisez fissiles. 

 Page 264, ligne 24, au lieu de Bayana, lisez Bayania. 



C, R.. 1877, a= Semestre. (T. LXXXV, n" G.) 47 



