vi CONTENTS. 
NUMBER XXXIV. 
Pag 
Art. XXVI. Paola face of the President to the 
‘Linnean ametyo Nay 241810, os as ine 35 cn = 241 
XXVIL—Chemical Papers from the Massachusetts epltge 
of eae ewe G. Ii. The determination of Lead a 
. May 
XXVIII.—On ree Gack. Limestone and. associated rocks 
ae enti) of o t ba arrington, Berkshire Co., Mass. ; 
s D. Daw 
xxE pe. Voroai. Deloss of M. Dausr&e, June 4, 1873, 279 
XXX.—On Isomeric Sulphosalicylic Acids ; by Ir Tra Remsen, 284 
XXXL—On ts Silt eames of Soils and Beto by Eve. 
9 
SCIENTIFIC INTELLIGENCE. 
Physics and Chemistry—On the Measure of Work in the Theory of Energy; by 
Rona Moon, 301.—Sull’ Ozono; Noti e Riflessioni, di GrusePPz BELLUCCI, 
Geiss and Natural History.—Mountain Making, 304.—Cretaceous of Long Island: 
On the Copper esisegeu of the Blue Ridge, 305.—On the Situation and Altitude 
of Mount Whitney; by W. A. Goodyear, 308.- Sixth Annual Report of the U. 
. Geo amigos in} i 
Wyo e 
year 1872; by Fon. 'Hayome N, 313. — he sn evidences of the Antiquity 
of Man, wi i i s on 
the origin of species with special ark ce ge Man’s first appearance on the 
Earth; oe seh eager Leys Geological Survey of Wisooasies Pareira Brava, 
315.—OBr —Elias Durand, 3 
peas Ae aah Intelligence. = pate ng of the American Association for the 
Advancement ‘of Science, at Portland, Maine, sclera! Wednesday, August 
20, 1873, 317.—Popular Lectures on Scientific Subjects; by H. HELMHOLTz, 
ay .—Mineral Springs of North America, how to cone and how to use them ; 
J. J. Moorman: Foods, by EpwarpD Smrru, 320. 
NUMBER XXXV. 
ArT. XX at — The Queen’s ets in the Great Pyriaee 
L. Smita. With Plate H,. 
XXXVI abe = Silt Analysis of Soils and Clays; ‘by ‘Eve. 
XXXVIL.- in Roaks of the Helderberg era, in the valley of 
the Connecticut; by Jamxs D, Via 
XXXVIIL.—Letter of Dr. B. A. GouLD, Director of the ae 
doba seirperieee et 353 
a ae a ea ee ae a ke a ae a i el ee 
=o Ghee elie aa 
