CONTENTS OF VOLUME XLI. 
NUMBER CXXI. 
Art. I. Sir William Jackson Hooker; - 
Il. On a a og and Glacial Scratches, at isiean: N. Fes 
b W. B. Dwicut, - 
III. On «Soden of end at Coltsaiiies N. Y.; by Rey. w. B. : 
Dw 
IV. On he. Crystalline aleve of Glass i Ciceui M. 
WETHERILL, Ph.D., 
VY. Contributions from the Sheffield cor of Yale Col- 
lege. No. IX.—On the assimilation of complex nitrogenous 
bodies by Vegetation; by S. W. Jonnson,-— - 
VI. Results of observations on the Drift Phenomena of Sf atmalet 
and the Atlantic coast southward ; py A. S. Packxarp, Jr., M.D. 
VII. On a Process of Elementary Analysis admitting of the de- 
termination of Carbon, Hydrogen and elie ata = 
combustion; by C. Ginpert WHEELER, - 
VIII. On a new Process for the determination of Bolghur in Or. 
: ganic Compounds, by combustion with Oxygen Gas and Per- 
oxyd of Lead; by C. M. Warren, 
IX. Description of an Automatic Reghtering and Priging Ba- 
rometer; by G. W. Hoven, A.M., - - 
X. Observations upon Shooting Stars in Noveaber; 1865, - 
XI. On Molecular Physics ; by Prof. W. A. Norton, 
XII. The Distribution and eaeittontat of North American Birds; : 
by Spencer F. Barrp, - - . - 
XIII. Experiments on Mechanical ee y Puiny Ear.e 
Cuase, M.A., - 
XIV. Notice of a new group of Bisios Shells ; by T. ih: Cducgiine 
XV. Professor Treadwell’s Improvements in constructing Cannon ; 
Address of the President of the American Academy of Arts 
and Sciences (Prof. Asa Gray) upon the prose of the — 
33 
78 
8s 
Rumford Medal to Professor TREADWELL, pieces 9 
