32 
THE NATURALISTS’ BUBEAU. 
11. GRAY.—Lessons and Manual. This work in one vol¬ 
ume is the most complete class-book used by Students of 
Botany. Cloth.3 00 
12. GRAY.—Manual of Botany. 8vo, with 20 plates illus¬ 
trating the Sedges, Grasses, Ferns, etc. Cloth, pp. 700 . 2 25 
This is a Manual for the use of Botanists, Teachers, 
and the higher grade of classes, to be used in connection 
with either the Lessons or the Structural Botany. 
13. ROBINSON.—Perns in their Homes and Ours. A . 
« 
work on the cultivation of Ferns, giving full directions for 
the care of these beautiful plants under cultivation and the 
selection of the varieties best suited to the purpose. Fully 
illustrated, many fine colored plates of rare ferns. 12mo, 
cloth. 1 50 
14. ROBINSON (John).—Perns of Essex County . . 10 
15. “ Addenda to Perns of Essex 
County.05 
16. “ The Pine, its Life and Impor¬ 
tance in Essex County . . 15 
17. “ The Trees and Shrubs of Es¬ 
sex County. Cloth ... 60 
18. HEMSLEY’S Hardy Trees, Shrubs and Plants . 7 50 
19. GRAY’S Synoptical Flora of N. A. Part 1 . 6 00 
20. NAVE, J.—Collectors’ Handy-Book of Algae and 
Seaweeds. London . . . * . . . 1 25 
21. HEATH. — The Pern World. By Francis George 
Heath. 8vo. Illustrated. Many colored plates 5 00 
22. “ The Fern Paradise. A Plea for the culture 
of Ferns. By Francis-George Heath. 8 vo. Illustrated. 
Colored plates . . . . . . 
23. SMITH (John).—Historia Pilicum. By John Smith, 
A. L. S. On the Classification, Distribution, Structure of 
Ferns. 30 plates by W. H. Fitch. London, 1875. 8vo . 5 00 
24. HOOKER.—Exotic Flora. By Sir W. J. Hooker. 232 
elegant colored plates. Large, 8vo. London . . .35 00 
25. Perns of Kentucky. 1 vol . . . . . . 2 00 
20. Perns of North America. Text by Prof. D. C. Eaton, 
of Yale College. Profusely illustrated by superb litho¬ 
graphic plates, by Emerton and Faxon. 23 parts now ready. 
Price per part.. . 1 00 
27. BERKELEY, M. J. —Introduction to Cryptogamic 
Botany. With 127 illustrations, London, 1857. 8vo. 
