ELEMENTS OF AGRICULTURE. 5S 
another aspect; its influence on the cultivable properties 
of the soil, and the rearing of domestic animals. 
100 A vegetable transplanted from one soil to another, 
does not at first grofv with its original vigor. So is it in 
this case with men and animals. A sudden change of 
diet deranges for some time the animal organization ; and 
a transition even somewhat protracted is always necessary. 
Plants require to be gradually accustomed to the new cir¬ 
cumstances in which they are to grow ; and often, when 
removed to a new climate, their conformation is changed, 
and their products, in both nature and quantity. 
101. The study of climate is above all necessary when 
the object is to change, in any locality, the system of ag¬ 
riculture that has been for a long time prevailing there. 
In this case some trials should be made to ascertain 
whether the plant desired to be introduced into the rota¬ 
tion will succeed. The same precautions should be taken 
with the animals to be employed in agricultural labor. 
102. In a damp climate, the defects of the lighter soils 
are less to be feared, as they are then less exposed to 
drought. The dampness of climate, however, does not 
depend so much upon the quantity of water that falls as 
upon the heat, more or less great, that causes it to evap 
orate. But it is well known that one country may possess 
a dryer climate than another, though more rain may fall 
in the first than in the second. 
103. The Creator, who placed and arranged everything 
here in such admirable order, adapted also to man’s wants 
all the. plants that grow in the climate that he inhabits. 
In England, for instance, the climate, though damp in 
consequence of its vicinity to the ocean, is more regular 
than with us. Under such a climate succulent food is 
very necessary ; accordingly nature favors, to a remarkable 
degree, the development of such plants as are necessary to 
the maintenance of numerous herds- 
