1899] CURRENT LITERATURE 325 
Inspite of such minor defects, which are of importance only to the student 
whose knowledge is not general enough to guard against them, this part, like 
its predecessor, must take a high rank among the books destined to advance 
the knowledge of living organisms. This it will do, not only by making more 
available an immense mass of important data, and pointing out the source of 
others, but still more effectively by its suggestiveness as to profitable direc- 
tion for experimentation.— C. R. B. 
The principles of agriculture. 
THE authors of books written in illustration and aid of agriculture may 
be roughly grouped into three classes. First, those who, unacquainted with 
Science, are adepts in practice and have faithfully described their own meth- 
ods, together with the usages of others who have successfully followed some 
branch of the business of farming ; second, those who have written from the 
Standpoint of pure science ; and third, those who combine a practical knowl- 
dge of agriculture? with a thorough knowledge of the sciences with which 
the art is intimately related and upon which the best practice chiefly depends. 
Professor Bailey belongs to the latter class and his qualifications for 
“nting or editing a text-book treating of the “ principles of agriculture” are 
YN0 means slender. 
Ws the relation of the natural sciences to this great industrial art. 
By on body of the book is divided into three parts, viz.; The mn 
Plant, and crops; the animal and stock. The six chapters into whic 
oT one is divided are written by four different men. Part two has three 
different author 
soil ; 
"ritten in lan 
unf, +76 
‘rath the general ear has been avoided, 
8g ® Which will not be readily and fully understood by the averag’ 
Y of fifteen or sixteen years. 
A text-book for schools 
*Battey, 
The Macmillan Com- 
and rura) we H., et al.: The principles of agriculture. 
a Societies. 12mo. pp. 300.. Illustrated. New York: 
f 1899, $1.25. 
