CONTENTS. Vv 
IV. The Composition and Products of Distillation of Sper- é 
 maceti, with some few remarks upon its oxidation by 
Nitric Acid; by J. Lawrence Smirn, M. D., - 301 
V. Sketch of the Infusoria of the family Bacillaria ; by Prof. 
J. W. Baixey, with a plate . 321 
VI. A Monography of the North ‘Mtnericaii Gaheuiade ‘sy 
Georce Enceimann, M.D., with a plate, - 333 
~ VII. A Catalogue of the Néiniaatia of Connecticut, dfraniied 
according to their natural families ; by Rey. James H. 
LINSLEY, - - . . : d a g 345 
VIL Analysis of Meteoric Iron from Cocke County, Tennes- 
see, with some remarks upon Chlorine in Meteoric Iron 
masses ; by Prof. Cuartes U. Suerarp, M.D.,  - 354 
IX. On Washingtonite (a new mineral), the discovery of : ae 
Euclase in Connecticut, and additional notices of the 
supposed Phenakite of Goshen, and Calstron-baryte f 
Schoharie, N. Y.; by Prof. Cuartes U. Sneparp,M.D., 364 
X. Abstract of the Proceedings of the Twelfth Meeting of 
the British Association for the Advancement of Science, 367 
XI. Meteoric Observations, made at New Haven, Conn. on 
the 8th, 9th, and 10th of a 1842 ; communicated 
by E.C. Herrick, - - - 
XII. Bibliographical Notices —Liebig’ s Sail Chemistry, or 
Organic Chemistry in its application to Physiology, 379. 
—Perkins’s Algebra, 380.—Life and Writings of Ebe- 
nezer Porter Mason; interspersed with hints to parents 
and instructors on the training and education of a child 
of genius: Davis’ Manual of Magnetism ; including also 
Electro-Magnetism, Magneto-Electricity, and Thermo- 
Electricity, with a description of the Electrotype Pro- 
cess, 381 :—Thoughts on a Pebble, or a First Lesson 
_in Geology, 382.—On the growth of Plants in closely 
glazed cases, 383.—Hooker’s London Journal of Bot- 
any, 385.—Hooker’s Ieones Plantarum: A Report 
on the Insects of Massachusetts, injurious to Vegeta- 
~~ tion, 8386.—The Botanical Text Book, for Colleges, 
Schools, and private Students, 388.—Monographie 
d’Echinodermes vivans et fossiles: Della Elettrotipia 
Memorie di Francesco Zantedeschi con cinque tavoli 
elettrotipiche di Zantedeschi e Antonelli, 390,—Lon- 
