iv CONTENTS. 
age. 
XII. Biography of Johann tere von Fuchs ; we FRANz VON eS 
OBELL, ~ 95 - 
XIlf. On the Presence of Fluorine in the Blood ; i. rercad 
NIcKLEs, - < ot 101 
XIV. Correspondence of JEROME ni Nibetad eat of Gerhardt, 
.—-Submarine Telegraph : Society of Acclimation: Caout- 
chouc: Wax and Tallow, 107.—Artesian Wells in Paris: 
Charts of the Ecliptic, 108.—Aérostats : On Perfumes, 109. 
—Manufacture of Aluminium, 111.—Origin of Urea in the 
Animal Economy, 112.—Electricity ; theory of the voltaic 
pile, 113.—Galvano-caustic : Crystallogeny : Artificial milk, 
114.—Universal Exhibition of er eee | Bibliography, 
115. 
wSCLENTIPIC INTELLIGENCE. 
emistry Ph site —On the wave length of the most refrangible trays and of those 
which act ctemily upon iodid of silver: On Tantalum and its compounds with chlo- 
rine and bromine, 
As: + ft 3 Th. orien c Vr. 
Tron from Chili, containing Native 
Lead, “ini an wébbcxit of a fall of a large mass of Meteoric Iron at Corrientes in South 
P Hard 
M.D., and Cuarves Bicket., Ph.D., 121—Chemical Analysis and Comparison 
of Serpentine Marbles known eider the name of Verd Antique, by Caarxes T’. Jack- 
son, | 
Botany and Zoology.—DeCandolle’s Prodromus, 126,--Flora Vectensis ; being a System- 
atic Description of the Phrenogamous or Flowering Plants and Ferns indigenows to the - 
Isle of Wight, by the late Witttam ArRNoLp Bromrieip, M.D.: Seeman’s ey of 
the Voyage of the Herald, 127.—Synopsis of the Cactacee of the United States and 
Adjacent Regions, by Groxek ENGELMANN, 128.—The Musci and Hepatice of the 
United ee east of the Mississippi River, by Wiruiam S. poh Fs 129.—On 
the rigin of the Organized Beings now living in the Azo , and 
the Cinarien by Oswap Herr, 130.—On the Ruminant BRATS 5 and the Above: 
inal Cattld of Britain, by Professor Owen, F.R.S., 132. : 
"Miscellaneous Scientific Intelligence.—Notice of the Scientific Results of the Expedition to 
the North Pacific Ocean, under the command of Com. John Rodgers, by W. Stimpson, 
136.—On the Meteor of July 8th, by Prof. N. K. Davis, 138.—Credit to whom credit is due, 
Note by Prof. A. D. Bacuz: Geographical Discoveries in Africa, by Rev. Mr. Lavinas- 
__ Tow, 139.—On Isothermal Lines, by Prof. sachet 144.--Machine for Polishing spee- 
ula of Reflecting Telescopes, by Dr. R. Greens, 145.—Observations with the Anervid 
: Tt a 
ANA: Anatomical Models by 147 
Prof. Nicholas M. Hentz: Wm. Yarrell: Professor Bojer, 148.—A Treatise on Mineral- 
ogy, by Caries Urnam Sueparp: Elementary Course of Geology, Mineralogy, and 
