CONTENTS. 7 
% Page. 
XIX. Analysis of a Magnetic Iron Pyrites, containing Nickel, 
from Gap Mine, Lancaster Co. renee Pa by Professor 
M. H. Bove, - 219 
XX. On the “ Clinochlore” ‘ of Chester County, Pe. § = Ww. h 
Craw, - - - pe soe - 222 
XXI. Phosphoric Acid in Normal Human Urine: ; by Dr. D. Bist: 224 
<A, Instructions for making wet Preparations of Animal Sub- 
stances; by Henry Goappy, M.D.,F.LS., — - 227 
XXIII. ica of Meterological Observations, made at Sih at 
Ohio; by 8. P. Hitpreru, M.D.,_ - . - - - 237 
XXIV. Note on Chinese{Horology : with suggestions on the form 
of Clocks adapted for the Chinese market; by D. J. Mac- 
n, M.D.—With a Plate, - - - - - - 241 
XXV. on Newiiianan by the Parlor Fire; by Wm. Hosxrne, Esq., 249 
XXVI. The Economical Constant cia ; by Professor Cuas. 
G. Pace; : : - - 257 
SCIENTIFIC INTELLIGENCE. 2 
Chemistry and Physics—New varieties of Narcotin: Equivalent of Phosphorus ; 
Production of Cyanid of Potassium: Constitution of Human Fat, 260-—On 
Schénbein’s Ozone, by Prof. Farapay, 261. 
Mineralogy and Geology.—On a locality of Carbonate of Strontian, by Prof.O. Root: 
Beryls in Grafton, N. H., by Prof. O. P. Hunsarn, 264.—On Stigmaria, 265.— 
Extracts from the Bulletin of thie our a ae of France, viz., Caves of 
Adelsberg, Magdalena and Planina in the Tyrol: A Cavern with Bones re- 
cently discovered at Lauw (Haut- Shiny, by M.A, Daven £E: Geodes filled with 
water, at St. Julien de Valgague, by M. D’'Homsres-Firmas, 267: Researches 
on the origin of the ae state of the terrestrial es oe or its id sie like cleav- 
e, by M. bE e Havsn B, 268: On ydrobarometer, a new instrument for 
scala the depth aoa cetera of the Sea, by M. H. Waurzrpriw: On 
Mount Ararat, by M. Anicu, 269: Water Spouts, 270.—Memoires de la So- 
ciété Géologique de France: Researches in Terrestrial Physics, by Henry 
, 
New York, by Prof. Guyor, 272.—Reports on the Albert Coal Mine, 276.— 
Notice of the Remains of Reptiles in the Old Red or Devonian formation of 
Scotland, by Capt. L. Brickenpen, F.G.S., and Giprow Atcernon Man- 
TELL, Esq., LL.D., F.R.S., &c., 278. 
Zoology.—T he Relations of Embryology and apereenlots to some of the funda- 
mental doctrines of Physiological Science; by Dr. W. I. Burner, 281.— 
An Improved Method of killing and Preparing jer ib. Insects for Cabi- 
net Specimens, by J. P. Kintianp, M.D., 286.—On the Perforation of Rocks 
by Pholades, by M. F. Cariiavp, 287. ‘ 
Astronomy. neem new Planet : arelieh 9 Notation of the Asteroidal Pl Plan- 
“ets, 287. 
