C 80) 
éarth.. What remains in the first employed vase, is 
sand, silicious or calcartous. 
3d. The dirty water, collected in the second vase, 
will form a deposit, which (after pouring off the wa- 
ter) must be dried, weighed and calcined. On 
weighing it after this process, the quantity lost will 
shew the portion of animal and vegetable mould con- 
tained in the soil: and, 
4th. This calcined matter must then be carefully 
pulverised and weighed, as also the first deposit of — 
sand, but without mixing them. To these, apply 
(separately) sulphuric acid, and what they respec- 
tively lose in weight, is the portion of calcarious or 
aluminous earths contained in them. These last may 
be separated from the mass by soap lye, which dis- 
solves them.”(1) 
Here is the light we wanted. In knowing the 
disease, we find the cure. Clay. and sand. qualify 
each other; either of these will correct an excess 
of lime ; and magnesian earth, when saturated with 
carbonic acid, becomes fertile. 
But entirely to alter the constitution of a soil, 
whether by mechanical or other means, is a work of 
time, labor and expense, and little adapted to the 
pecuniary circumstances of farmers in general.— 
Fortunately, a remedy, cheaper, more accessible 
and less difficult, is found in that great diversity of 
habits and character, which mark the vegetable 
races. We shall, therefore, in what remains of this 
— 
(1) This method of analyzing soils, is that described by M. Bose, member of the. 
institute of France, &c, and recommended to French agriculturists. 
