614 Recent Literature. —— 0m 
tubers; those cultivated for their stalks or leaves; those useful 
from their flowers or the parts enveloping them; fruits and 
rains. The third part is devoted to a résumé and conclusions, 
of the work, by Dr. Asa Gray and J. Hammond Trumbull, in the 
American Journal of Science for April and May, 1883, containing 
valuable additions relative chiefly to American plants. 
Jacxson’s VEGETABLE TecunoLocy!—This is evidently a most 
carefully prepared bibliography of economic botany, and must 
prove of great utility. The author purposely excluded all books 
devoted to silk and cochineal, as not being strictly with 
limits of the title as settled by the Index Society; and “m 
reluctantly the subject of the vine, its culture and products, pe 
ply on the ground of its enormous extent.” The bibliography 
the vine, he adds, in all its bearings would require a lifetime 
its compilation. He has also excluded books and papers of jee 
citation. The author does not claim that the wor a 
saying that “a complete bibliography of economic get wA 
require the labor of years.” The num tr t editions. 
ent book is 3580, exclusive of translations and differen 
The index fills nearly 100 pages, is comprehensive, an 
greatly, of course, to the usefulness of the work. i 
SMITH’S DICTIONARY OF ECONOMIC Prants? — The 2% 
this work is sufficiently indicated by the title; it 1S am ected, fof 
to the cultivated plants. The author was officially on thus prot 
more than forty years, with the Kew Gardens, mer ving plants 
tically acquainted with the largest collection O 4 to thos 
exotic and native, ever brought together. i each care, e 
points which DeCandolle has worked out wit Cael in the 
present work is deficient, still it is a useful book, 
form of an index or dictionary. : 
RECENT BooKS AND PAMPHLETS. 7 = Louis fot 
` Engelmann, Geo.—The mean and extreme daily temp ee St. Louis 
seven years, as calculated from daily observations. a 
F. E. Nipher. : of a vom 
cal resistance m ang Pe ae. 
1884. From . 
(eco pie 
the Int 
Peres ec ee ys be ree 
Nipher, F. E—On the expression of electri 
Ext. Trans. St. Louis Acad. of Science, Vol. IV» 
y . . 0 
1 Vegetable Technology. A contribution towards a bibliog sy Jackson: 
with a comprehensive subject-index. By eee io published for 
upon the collections of George James Symonds. Lon ni ot 
Society. 1882. 8vo, pp. 355. ; ; the natural eT 
14 Dicimady of popular names of the Plants which losi J Their eee i 
wants of man in all matters of domestic and arie : & Co. 1882 8yo» . 
ducts and uses. By Joun SMITH. London, Macmillan © - 
