iv CONTENTS. 
NUMBER IL, 
Page 
Art, X.—Jeffries Wyman. Address of Professor A. Gray, 81 
XI.—On some Points in the oer of the Blue Ridge of 
M. Fon 
Virginia; by Wm. a ace 
XI.—Notice of the Chemical and Geological Essays of T. S. 
sents Dy Jaume: Tan 102 
XIU. D6 Varieties wear out, or ? tend to wear out? By Asa 
OREN, 03.5 PT aes, Soi cee. Sci e 
XIV. —Formation of Paratoluic acid from Parasulphotoluenic 
acid; on Nitroparasulphobenzoic acid; on the action of 
Potassium on Ethyl succinate; b Tra Fiiaisant 
See. 115 
XV.—On the detection of Hy drosyanic Acid; by M. CaREY 
121 
XVI —The Gigantic Bec talooads. e the North ‘Ailanta: by 
A. E. VErr 
XVI.—On the Becket ae done by a Muscle a 
Exhaustion; by F. E. Nip 130 
SCIENTIFIC IN’ iehenaire 
Chemistry and Physics Te mean of Sulphurous acid and arg eer MICHAELIS 
and WAGNER: On the organic acids of crude Petroleum : and MEDINGER, 
138.—On the direct synthesis of Methyl aldehyde, facies: ynthesis of an 
Isomer of Cane-sugar, GauTrER, 139.—On altose, ScHuLZE: Synthesis of Leu- 
cic acid by means of its nitrile, ERLENMEYER and SIGEL: Relation of Phthalic 
acid to Anthraquinone, Wrirn and BINDSCHED 140.—Si oi ae ig tien of 
Ureematin zematin, Hércutieriai: Asparaginie acid a uct of 
Pancreatic digestion, RADZIEJEWSKI and SALKOWSKI: Ayapatinetis Fiprations, 
M RIPON, 141.—Electrical Resistance, M. BENOIT, 142. a ction by Glass, 
Electrical Polarizati i 
Natural History.—On the Cosmical dust woh fal to the earth with 
atmospheric precipitation; by A. E. NORDENSKIGLD —On Middle Park 
Mineral Coal; by E. J. MAL LLETT, 146.—Voleanic Phonomens of County Antrim 
and adjoining Districts, Northeastern Irela nd, by ARD Hu, 147.—Report 
~ the Geological Survey of ——— inekisditie § Faecal of 1873-4, by GaAR- 
ND ©. BROADHEAD, 148.—Geological Sury: tvey of Victoria, 150.—Re ort upon 
tab Fossils discovered j in New Mexico, with descriptions of new species, 
by E. D. Core: Twenty-sixth Annual Report on the New York State Museum 
graphia, by F. A. av wpe and Dante, Hans 153. caeyeiseis tly mycetes 
Europeei, si sive Kpicriseos Systema Mycologici editio Ph ExiAs Fries: Mio- 
cene Fossil Plants of Greece: Mace: rganogeny of the Androecium and its 
‘a 
Amoeba swallows its Food, Lemy, 155.—Motive power of Diatoms, 
Lewy: The Common es by St. George Mrvart: Animal Mechanism, a trea- 
tise on Terrestrial and A. Gabe tae b by E. J. Sere 156. 
Astronomy.—Th 
beam, Lapointe 
a Intelligence. —Royal Society: Proceedings of the Centennial 
of pronase 158. 
Se Se eee 
