A Rapid Method for the Determination of Camphor and of Certain Essential Oils when in Solution in Alcohol.

Abstract

II-The solubility of bone phosphate is directly influenced by bacterial action, and an increased ammonia or nitrate decomposition may be held to indicate a more efficient phosphoric acid solvent action. III-Since there is a limit to which bone meal can be ground to permit of its convenient handling, fine bone meal should possibly be defined as that which passes through a 50 mesh sieve.IV-Since, however, it is not commercially practicable to prepare so fine a product without also including a considerable proportion of the very fine dust, a standard of fine bone meal of 65 per cent to pass a 50 mesh sieve, and at least 90 per cent of the remainder to pass a 25 mesh sieve is presented as one to which no reasonable objection can be offered by the dealers, and from which satisfactory results will accrue to the crops.