42 
AMERICAN NATURAL HISTORY. 
Properties, and Uses of each Plant and Flower, by A. B. Strong. 182 
Plates. 4 vols. 4to. New York, cloth. £4 4s. 
Sprague.— The Genera of the Plants of the United States, illustrated by 
Figures and Analyses from Nature, by Isaac Sprague, Member of the 
Boston Natural History Society. Superintended, and with Descriptions, 
&c., by Asa Gray, M.D., Fisher Professor of Natural History in Harvard 
University, Corresponding Member of the Royal Bavarian Academy, Member 
of the Imperial Academy Naturae Curiosorum, of the Botanical Society of 
Ratisbon, &c. 2 vols. 8vo. New York, sewed. £1 11s. 6d. 
Torrey. —Flora of the Northern and Middle States, by John Torrey. 8vo. 
New York, 1824. _ • /, 15s. 
Torrey. —-A Compendium of the Flora of the Northern and Middle States, 
containing Generic and Specific Descriptions of all the Plants, exclusive of 
Cryptogamia, hitherto found in the United States, north of the Potomac, by 
John Torrey, LL.D. New York, 1826. 
Torrey. —A Flora of the State of New York, comprising full Descriptions of 
all the Indigenous and Naturalized Plants hitherto discovered in the State; 
with remarks on their Economical and Medicinal Properties, by John Tor¬ 
rey, M.D., F.L.S. Published by Authority. Albany, 1843. Yol. I. pp. 
xii. and 484, with 72 coloured Plates; Yol. II. pp. 572, with 90 coloured 
Plates. 4to. cloth. 
Torrey. —Observations on the Batis Maritima of Linnaeus, by John Torrey, 
F.L.S. 1 Plate. 4to, pp. 8. Washington, 1852. Is. 
Torrey.— On the Darlingtonia Californica; a new Pitcher Plant from North¬ 
ern California, by John Torrey, F.L.S. 1 Plate. 4to, pp. 8. Washington, 
1853. Is. 
Torrey.— Plantse Fremontianse’; or, Description of Plants collected by Col. 
J. C. Fremont, in California, by John Torrey, F.L.S. 10 Plates. 4to, pp. 
24. Washington, 1853. 3s. 6d. 
Torrey and Gray.—Flora of North America; comprising an Account of all 
the Indigenous and Naturalized Plants growing North of Mexico, by John 
Torrey and Asa Gray. In 3 vols. 8vo. Yol. I. is'now‘ready, comprising 
Parts I. to IY., £1 10s. Also, Parts Y. and YL, 7s. 6d. each". Part YII., 
5s. New York, 1838—1842. 
This is the only authentic and complete American Flora. The object of the work is to give a 
scientific account of all the Indigenous and Naturalized Plants of North America, at present 
known. It is, we believe, the most extensive local Flora that has ever been undertaken. The 
latest Flora of this country, that of Pursh, was published forty years ago, at which period exten¬ 
sive regions, even within the United States proper, had never been visited by the Botanist. Since 
that time, the number of known plants has vastly increased ; and the science itself has made such 
rapid advancement, that this work will present the Botany of this country in an entirely new 
aspect. 
Tuckerman.— A Synopsis of the Lichenes of New England, the other North¬ 
ern States, and British America, by Dr. E. Tuckerman. 8vo. Cambridge, 
Mass., 1849. cloth. 5s. 
Wood.— A Class-Book of Botany, in Two Parts. Part I. The Elements of 
Botanical Science. Part II. The Natural Orders ; Illustrated by a Flora of 
the Northern, Middle, and Western States, particularly of the United States, 
North of the Capital, latitude 38f°, by Alphonso Wood. 41st edition, re¬ 
vised and enlarged. post 8vo, pp. 650. Boston, 1855. 9s. 
5 . GEOLOGY, MINERALOGY, PALAEONTOLOGY. 
Agassiz.— The Primitive Diversity and Number of Animals in Geological 
Times, by L. Agassiz. (From the American Journal of Science and Arts, 
2nd ser. vol. xvii.. May, 1854.) 8vo, pp. 16. Newhaven, 1854. sewed. Is. 
