278 Dr. Heoker on American Botany. 
he has included all that have been described by other authors, 
discovered by himself or bis friends. This book may there- 
ore be well said to form an era in the history of American 
botany; and we rejoice that the execution of it has fallen 
into such able hands. 
Mr. Nuttall has added still more to his credit as a naturalist 
a man of most acute observation, by the publication of | 
his Travels in the Arkunsas territory. This was a journey . 
' accompanied with great difficulty, and not a little danger. i 
we The plants which he collected were numerous and interest- 
ing, very different from the vegetation of the rest of the U. 
States, and many of them perfectly new. Some detached 
accounts of the botany of this singular district have already 
appeared, particularly in the Journal of the ena of Na- : 
tural Sciences at Philadelphia, and not a few of the plants | 
themselves are now cultivated in our botanic gardens, from 
s gathered by Mr. Nuttall. 
‘This gentleman now occupies abe chair of Natural History 
in the University of New Cambridge. 
We regret not to be able to give any account of Eaton's 
Manual of Botany, nor yet of Barton’s more extended Flora 
North America, (which is, we believe, in the course of 3 
publication,) never having had the opportunity of seeing these 
wo! 
The various scientific journals which are published in Ame- 
rica, contain many memoirs upon the indigenous plants. 
Among the first of these in point of value, and we think also 
ms ’ 
can Journal of Science, in which we find Botanical Tracts 
by Professor Ives of Yale College, and by Mr. Rafinesque ; by 
Dr. Torrey, a physician at New-York, ‘on the plants col- 4 
lected by D. B. Douglass of West Point, in the expedition =] 
around Ne great lakes, and the upper waters of the Missis- : 
sippi, under Governor Cass, during the summers of 1819— 
20;” and also “on-a new species of Usnea* from Newt 
