vin CONTENTS. 
NUMBER CLXIL 
ART. XLIX.—The aes of Terrestrial Rotation for (he. 
Deflection of Streams; by G. K. Ginpert, ..--..---.--- 427 
~ L,—Examination of Wallace’ s Modification of the Physical 
Theory of Secular Changes of Climate; by Jas. Croxn, 432 
LI.—Marsupial from the Colorado Miocene; ; by W. B. Scorn, 442 
LII.—Method of obtaining Autographic Records . Free 
Vibrations of a Tuning-fork ; by A. G. Compton, .._.-- 44d 
oe ae grs fect of the Great Basin; ; by puis: Haar 
BER 
LVIL » Kaolinite, from Red Mountain, Col.; by R. C. Hints, 472 
LVIII. Balen e Influence of Convection on Glaciation; by G. F. 
Lf oan 73 
SCIENTIFIC INTELLIGENCE. 
Chemistry and Physics. ~-New determination of Atomic weights, MARIGNAGC, eg 
sition, ScHIrr, .—Discovery of the —— Law and i relati 
Atomic weights, J. A. R. 7. EWLANDS: sorption Spectra of Water, 485.— 
Magnetic effect of Electrical Convection, “roan: Hall’s Sieotbebne LEDUC, 
86.—Text Book of the Principles of Phys . DANIELL: Pease anal in 
Electricity and Magnetism, A. Cnet 481- yn -Héat, P. G. Tart, 4 
Geology and Natural History. ctheaied of Fossil Cephalopods, A. Hyaee 488.—— 
Geological rigid of Serpentines, T. S. Hunt, 489.—The Taconic question in 
Ham 
‘ist of California n : : 
Clematides Megalanthes, Les Clématites, etc., A, LAVALLEE, 494.-—Porto Rico 
Plants: Rie Exsiccate quas distribuit V.B . WITTROOK, 495 
agoray Scientific eoeae — British Association at Montre: al, 496. —A 
can Associat tion: Peabody Museum of American abi te 491 ac boriginnl 
peer can Authors and ae Profctions The Giiegiience, 4 
Inpex TO VotuME XXVII, 
i 
ERRATUM. 
Page 19, the top line should read : 
“a stop cock in the tube / is then turned, cutting off the Sprengel pump ;” 
