THE NATURALISTS’ BUREAU. 
31 
39. TYNDALL.—Notes of a course of Seven Lectures 
on Light. By John Tyndall. 12mo, cloth. London, 
1870 .. 75 
40. TYNDALL.—Light and Electricity. Notes of two 
courses of Lectures. By John Tyndall. 12mo, cloth. 
New York, 1871.1 25 
41. TYNDALL. — Researches on Diamagnetism and 
Magnetic Crystallic Action, including the question of Dia¬ 
magnetic Polarity. By John Tyndall. 1 vol., 8vo, cloth, 
with nufherous Illustrations. London, 1870 . . . 7 00 
BOTMY. 
1. COOKE’S (M. C.) Handbook of British Fungi. 2 
yoIs. 12mo.$12 00 
2. PRATT (Anne).—The Flowering Plants, Grasses 
and Perns of Great Britain. Fine edition. 
Containing upwards of three hundred colored 
plates. 6 vols. 8vo. Gilt edges . . . 30 00 
3. <s The Ferns of Great Britain, and their Al¬ 
lies, the Club Mosses, Pepperworts and Horse¬ 
tails. Containing 41 colored plates. 8vo. Gilt 
edges.5 00 
4. EMERSON (George B.)—Report on the Trees and 
Shrubs growing naturally in the forests of Massachusetts. 
2 vols. 8vo. Half morocco, gilt tops. Illustrated with 
plates, many colored. 30 00 
5. GRAY’S Manual and Lessons of Botany. 8vo. With 
20 plates illustrating the Sedges, Grasses, Ferns, etc. Over 
360 wood-cuts from original Drawings by Isaac Sprague; 
to which is added a copious Glossary or Dictionary of Bo¬ 
tanical terms. Cloth.3 00 
6. GRAY’S New Manual of Structural Botany . . 3 50 
7. ALLEN.—Victoria Regia, or the Great Water Lily of 
America. 1854. Royal folio, 6 colored plates, in sheets . $10 00 
8. MANN.—Catalogue of Plants of XT. S. East of the 
Mississippi.35 
9. WOOD.—Contribution to the Fresh Water Algse. 
This work is illustrated by many fine colored plates, large # 
quarto, paper.. . 7 50 
10. THOME.—Structural Botany.2 25 
