Geology and Natural History. 151 
translated into English. So we propose to give a running account 
of its contents, adding here and there some brief comments, criti- 
cal or otherwise. Treatises like this can be written only by bot- 
a 
numerous objects of his study. Men who have distinguished 
themselves in various professions and lines of life, have owned the 
advantage they have derived from this kind of training in youth, 
even though they never became naturalists. 
eCandolle’s book is in thirty chapters, many of them short 
and somewhat discursive, and generally abounding in recommen- 
dation and advice, rather than laying down positive rules. 
The first chapter glances at “the evolution of botanical works” 
from Cesalpino, with whom scientific botany began in the middle 
of the 16th century, to Linnzus, whose rules and spirit still gov- 
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