Dr. Jeannel in an experiment respecting the use of artificial manures, the results, of which were contributed to the Journal of the Central Horticultural Society Of France, took two plants of Pelargonium and two of Agaves, of as nearly as possible the same degree of luxuriance. One plant of each was placed in ordinary soil, the other in sand. Water was supplied to each, and in addition a dose of mineral manure was afforded to the plants in the sand, care being taken by means of saucers, to prevent the loss of soluble salts. After six months the Pelargonium, in the manured sand was four times as vigorous, as that in the soil. Similar results occurred with the Agaves. When the two plants were grown, in ordinary soil, with or without manure the effects were similar. The manure used contained the following ingredients per 1.000 parts:

Four grammes (about a drachm) of the pulverised and mixed salts were dissolved in a gallon of water, and administered to the plants weekly. In using solutions of mineral manure for various plants, it must be remembered that the requirements of each species are somewhat different.