CONTENTS. vil 
a B.C.F.M., at Oroomiah, Persia ; rcp £4 gs by mo ces 
RP. HvBBaR rp, M.D., 347 
XXXV. "Cabbagranhy by Pro of. C. Diver , MD., 
XXXVI. On a New Metal, Ses om: contained in the Bavarian 
Tantalite ; by Prof. 
XXXVII. Termination of the Paleeotols Périod, iu’ fisisteinne. 
ment of the Mesozoic; by D. D. OwEn ,M. 
re Pre faa: (Gelatine Se a a some of i its Products of 
composition ; by E. N. 
XXXIX. Origin of ne: Grand Culling: patios: of the Earth by 
AN 
XL. yd on the ‘Alge of the United States m Prof. J. W, 
XLI. ey few Heche on the silica Classification ; ty Sir Rop- 
x Impey Murcutson, G.C.St -R.S., &c., 
XLIl. Hydrate of Nickel, a New Mineral by Prof. B. Sti. 
LIMA 
XLII. On Cupétiaien with the Blowpipe’ by Wn. W. Maruze, 409 
XLIV. On the Variation of a Differential Coefficient of a Function 
of any number of Variables ; by Prof. A. D. Stan.ey, 415 
SCIENTIFIC INTELLIGENCE. 
sein and Physics —On the presence of Fluorine in Asiehenie, by Gro 
C. Scuarrrer, 422.—Arseniate of Magnesia and Ammonia, end its pplication: 
by M. Levon: On the Acids of Tobacco, by M. E. Gourit 
osphorus, by M. Ev. Desarys: On Coffee, sage part,) by M. Paven, 423.— 
Determination of Nitrogen in Grsais Bodies, at orce Kemp, M.D.: On 
the Preparation of Caustic Baryta, by Dr. E. Riece t. Nitrogen n not a Constit- 
m Density of Pure Water, 427.— 
n a new and practical ‘ices “of er Foliaie Be pe tg of the the 90 ‘Eat in which 
Potassium forms the positive element, OHN 
graphic Self- oe Meteorological ond Ssgnelical ‘Taarameeals by Fran- 
cis Ronaxps, Esq., , &e., 428. 
ekg feo Geology.—Buratite, a new Mineral, by M. Devesse: Groppite, a 
weg ale a Re ARSESA : Herschelite : Aspasiolite, a new Mineral, 
Sak: 429.—Castor and Pollux, two new Minerals, by Breirnaurt 
Wales, by Dantet Saarpz, 430.—On the Salt and Salt Lakes of ig 2a by 
H. Fourner: Volcani © Peak of the Island of Fogo, Cape Verds, by C 
432. a Nokes of an asus of apparent Drift Furrows dependent on Structure, 
by C. B. Apams, 43: 
Zooloey.—On the Range of the Beaver in the United Lise wes by 8. B. Bucxrey: 
On thes situation of the ro en Sense in the terrestrial tribe of the Gasteropo- 
ei Mollusca, by Josera Lerpy, M.D., 434.—Description of a new species of 
“Fie Pyranga 
roseo-gularis, a new species from Yucatan, by Dr. Casort, 436. Py orhy tole 
Gouldii, a new Echinus Pathe the Millstone Grit ore meorga by M. Bovvé, 437. 
