CONTENTS. 
NUMBER LVII. 
Pag 
Art. XXXI. The Vegetable Individual, in its relation to rece ; 
by Dr. ALexanper Braun, - 
XXXII. A Research on Tellme; by F. Wouter “a0 
J. Dean, 
XXXII. Memoir on Maiebitici ak Pescriviieis of five new Me- 
teoric Irons, with some theoretical considerations on the ori- 
_gin ‘of Meteorites based on their Physical and Chemical char- 
“ acters; by Prof. J. Lawrence Smiru, M.D., -_ - 
XXXIV. On the Variable Star Algol, or @ Persei ; by Fr. ki 
GELANDER, 
XXXV. Saher Tooth j in Missa cgnnton ; by jie 
C. Warren, M.D., > 
AXXVI. Supplement to the Minerlogy of A D. Dana, by ve 
Author.—Number I, - 
XXXVII. Review of Murchison’s Siluria, - 
XXXVIII. Barometric Anomalies about the Andes; as es 
M. F. Maury, U.S.N., - - 
XXXIX. Impressions (chiefly Tracks) on Alluvial Cy, in | Had- 
ley, Mass.; by Cuartes H. Hirencocx, 
XL. Emmons on American Geology, . 
Arr. XLI. Correspondence of M. Fei Rickias Pe is rela- 
tions which exist between the chemical composition of bod- 
ies and their physical properties, 407.—Limits of the vapori- ; 
zation of Mercury, 408.—Assimilation of Nitrogen by Plants : 
Action of some animals fluids on the fats: Calculating Ma- 
chine, 409.—Artillery in the 15th Century: Zoological So- 
ciety for Acclimation and Domestication, 410.—Silkworms, 
411.—Anesthesis of Bees: Pisciculture: Production of Al- 
cohol, 412.—Photographic news: Bibliographical notices, 
413, 414.—Obituary notice of Melloni, 414.—Death of M. 
Braconnot: Death of Joseph Remy, 415.—Monument to 
Arago: Correspondence of T. S. Hunr—On the Equiva- 
lent of some species: The so-called Talcose Slates of the 
Green Mountains: A newly discovered Meteoric Iron: 
Ores of Nickel from Lake Superior: 416, 417. 
SCIENTIFIC INTELLIGENCE. 
the specific volumes of fluid compounds, 418.—On the em- 
Chemistry and Physics—On 
ployment of a solution of chlorid of iron in the galvanic battery, 420—On the law of 
absorption gases: On the mechanical equivalent of heat, 421.—A new Carbonic 
