CONTENTS, vill 
Pag 
XLUL—A proposed Arrangement for Observing the Corona, 
and Searching for intra-Mercurial Planets during a To- 
tal Eclipse of the Sun; by Smion Newcomp, ---...--- 413 
SCIENTIFC INTELLIGENCE, 
Physics and Chemistry. age the rien cgtagh a i ripe an ‘gentg sb ned - — or 
sen of wi 
phid, BERTHELOT: On Carbonylic Sulphid, Benper, 422.—On carbonylic chlorid, 
and a new compound of this substance with platinum, Scutt ee 423,— 
On the relation between eine point and constitution of hydroca: 
cs w source of octylic Alcohol, 425. oiaatie nie al- 
cohol produced by fermentation: On the reduction of acetic oxyd to ethylic al- 
cohol: On the alcohol obtained by the saponification of castor oil, 426.—On Sul- 
pho-carbamid, } 
—On a ceammes Phosphate from the island of Redonda, W. I; by CHAaRLEs 
Geology. 
Urnam Sueparp, 428.—Final Report on the Geology of New pa by Gzo. 
430. 
H, Coox, 
Zoology.—Are Unios sensitive to light ? by Isaac Lza, 430. 
Miscellaneous Scientific Intelligence—On the use of sodium in explosive powders, 
Dr. H. Frecx, 431.—Decrease in the Production of Gold, BLAKE, 482.—Dana’s 
System of Mineralogy, 433.—Obituary.—J. Nicklés: William Mitchell, 434. 
—Handy Book of Meteorology, by ALEXANDER 
Miscellaneous Bibliography. BucHan: 
Re of Scientific Discovery, Ad SamvrL KNEELAND, 434.—First Principles of 
Philosophy, by J. P. Cooke: Outlines of Physiology, Human and 
Citniahiie. by JoHN Br omer The Ornithological Collection of John Cas- 
sin, a ee of the Orthoptera of North America, described previous to 
1867, by 8. H. ScuppER: Memoirs of the Peabody Academy of Science: Bulle- 
_ tin of the Eosex Institute, 436. 
Proceedings of Societies, ete., 436. 
ERRATA. 
Page 193, line 3 from top, for “ declination” read “ co-declination.” 
** 364, line 10 from bottom, read “ one to two thousand.” 
