vi ‘CONTENTS, 
ii Tubipore, KéLuiKer, 273. —A Guide to the study of Insects, and a Treatise 
m those injurious and beneficial to Crops, Packarp, 274, 
—Notice of new pw _— Bi and — Watson, 274.—Discovery of 
ber new Planet by Dr. entary Lessons in Astronomy. oe 
Tables for the mutual conversion eure Sole and Sidereal time, Lane, 27 
Miscellaneous Scientific Intelli ich eat ceanse Meeting of the American Associa 
tion for the Advancement of Science, 275.—On the fall of Rain, as affected by the 
Moon, Cuass, 281.—On a oor deismithons between the amourt of Rainfall 
and the changes of the Moon, Hennessey, 283.—On a new Meteorite, GEINITz, 
284. 
Obdituary.—Professor Matteucci, 285. 
iscellaneous Bibliography.—Cambridge Physics. A Hand-book of Natural Philoso- 
phy, Lian gia and GILLET, 285.—Braithwaite’s Retrospect of Practical Medicine and 
Surgery: Ranking’s Half-Yearly Abstract of the Medical Sciences: Archives du 
Musée Tevlers The American Naturalist, 286.—Reliquice Aquitanice, LARTET an 
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et Modéles en Bois des cristaux 4 vendre dans le Comptoir Minéralogique Rhénan, 
KRAnrTz, 287, 
Proceedings of Societies, etc., 287. 
ph NUMBER CXXXVIIL. 
Pp; 
Arr. XXVIIL—On the molecular structure of Uric Acid and 
its derivatives; by Woxcorr Gimps, -- 289 
XXIX.—The Occultator; by Tuomas Hit, . 299 
XXX.—On the Amiens Gravel; by Atrrep Tyror,._..__- 302 
XXXI.—On the Artificial Formation of Organic Substances ; 
by C. Grevitte WiiiaMs, 
XXXII.—Notes on the Caucasus; by Capt. F. von Koscu- 
KULL, 335 
XXXTIL—Notes on Mr. Charles Stodder’s paper entitled 
“ Nobert’s Test-plate and modern Microscopes ;” by W. 
S. SuLirvant, 347 
.—Remarks on the nineteen-band Test-plate of No- 
bert; by J. J. Woopwarp, 
XXXV.—Notes on the betel of Southwestern Ontario; 
by T. Srerry Hun 
XXXVI—On et action a Sunlight on Bisulphid of Car- 
bon; by O. 
iat i a 
