Having fitted up a portion of one of my offices with all the requisites
for carrying out quantitative analyses of surface soils, I requested
Professor Lobley, F.G.S., etc., to analyse the four samples of soils
which I brought with me from Merced.

A general analysis of four samples of soil from Merced, California, has
given the following results:--

SAMPLE A.

Organic matter (Humus) 5.5
Soluble inorganic matter 11.75
Insoluble silica and silicates 82.75
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100.00

SAMPLE B.

Organic matter (Humus) 4.25
Soluble inorganic matter 14.45
Insoluble silica and silicates 81.30
--------
100.00

SAMPLE C.

Organic matter (Humus) 5.25
Soluble inorganic matter 16.75
Insoluble silica and silicates 78.00
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