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Manures and the Principles of Manuring

by Charles Morton Aikman

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Chapter XI

Appendix to

NOTE I. (p. 364).

The following analysis will serve to show the composition of bone-meal:—

Moisture10.43
* Organic matter32.30
Phosphate of lime48.40
Carbonate of lime, magnesia, &c.7.20
Insoluble siliceous matter1.67
100.00
* Containing:—
Nitrogen3.71
Equal to ammonia4.51

NOTE II. (p. 368).

Composition of Dissolved Bones.

The accompanying analysis may be taken as representing the average composition of dissolved bones:—

Moisture10.10
* Organic matter and water of combination29.34
Monobasic phosphate of lime11.23
(Equal to tricalcic phosphate rendered “soluble”17.58)
Phosphate soluble in ammonium citrate14.02
Insoluble phosphate of lime1.88
Calcium sulphate, magnesia, alkalies, &c.30.23
Sand3.20
100.00
* Containing:—
Nitrogen2.62
Equal to ammonia3.18

Composition of Compound Bones.

The following analysis illustrates the composition of compound bones:—

Moisture8.10
* Organic matter and water of combination37.22
Monobasic phosphate of lime13.68
(Equal to tricalcic phosphate rendered “soluble”21.42)
Insoluble phosphate of lime10.48
Calcium sulphate, magnesia, alkalies, &c.26.02
Sand4.50
100.00
* Containing:—
Nitrogen1.90
Equal to ammonia2.30

NOTE III. (p. 369).

As showing the composition of bone-ash, the following analysis may be quoted:—

Moisture.25
Organic matter.85
* Phosphoric acid.25
Lime47.09
Magnesia, alkalies, &c.9.80
Sand6.45
100.00
* Equal to tricalcic phosphate77.63

NOTE IV. (p. 370).

Composition of bone-char (on dry sample):—

Carbon10.51
Calcium and magnesium phosphates, calcium fluoride, &c.80.21
Calcium carbonate8.30
Calcium sulphate.17
Ferric oxide.12
Silica.34
Alkaline salts.35
100.00

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