Chapter Xi.--Bones.

Early use of bones 359 Different forms in which bones are used 360 Composition of bones 362 The organic matter of bones 363 The inorganic matter of bones 363 Treatment of bones 364 Action of bones 365 Dissolved bones 368 Crops suited for bones 368 Bone-ash 369 Bone-char or bone-black 369

APPENDIX TO CHAPTER XI. NOTE I. Analysis of bone-meal 371 II. Analysis of dissolved bones 371 III. Composition of bone-ash 372 IV. Composition of bone-char 372