CONTENTS. 
Remarks on the saltness of the Ocean, and the effects of light 
on turbid waters; by the Rev. Hector Humpureys, 208.— 
Kenawha Gas, 209.—Bromine and Iodine, 211.—Abstract of 
a Meteorological Register for the year 1844, kept at Steuben- 
ville, Ohio; by Roswett Marsn, 212.—Fossil Remains 
from Algoa Bay, near the Cape of Good Hope: Fossil Foot- 
marks and Rain-drops; by James Deane, M. D., 213.— 
Large Trilobite—lowa Coralline Marble: Dorudon: Foot- 
prints; by A. T. Kine, M. D., 216.—Large Skeleton of the 
Zeuglodon of Alabama, 218.—Bones of the extinct gigantic 
Bird of New Zealand, called Moa: Sixth Annual Meeting of 
the Association of American Geologists, 219.—Comets: Se- 
cond Comet of 1845: Third Comet of 1845,220.—The Earl 
of Rosse’s Leviathan Telescope, 221.—Notices drawn from a 
Letter of our London Correspondent, 227.—Columbite: Gray 
Antimony : Postage of Printed Sheets in England, 228. 
NUMBER II. 
Art. I. The Coast Survey of the United States, - - - 
I]. A Letter to Berzelius on Chemical Nomenclature; by 
Prof. Ropert Hare, M. D., - - - : 
III. Description of a Singular Case of the Dispersion of Blocks 
of Stone connected with Drift, in Berkshire County, 
Mass. ; by Enwarp Hircucocx, LL. D., - - 
IV. Meteorological Observations made at Hudson, Ohio, du- 
ring the years 1841, ’2, ’3, and °4, with a summary for 
seven years; by Prof. Ex1as Loomis, - - - 
V. On the Physical Geology of the United States east of the 
Rocky Mountains, and on some of the Causes affecting 
the Sedimentary Formations of the Earth; by Prof. 
Wititram W. Maruer, - - - - - 
VI. Description of the Solar Index, a new Magnetical Instru- . 
ment; by Marsuatnt Conant, - - : - 
VII. A Report to the Navy Department of the United States 
on American Coals, applicable to Steam Navigation and 
to other purposes ; by Prof. Waiter R. JouNnson, 
VIII. (1.) Description of a mass of Meteoric Iron, which fell 
near Charlotte, Dickson County, Tenn., in 1835 ; (2.) 
