HERE THE MATERIALS COME FROM.
WHERE TO GET THEM IN THE CHEAPEST FORM.
HOW TO COMPOUND FORMULAS, ETC.
BY J. J. H. GREGORY, A.M.,
INTRODUCTION.
CHEMISTS tell us that water, and this air around us, that we can neither see nor grasp, and which in all our everyday calculations of space we take no account of, make up from eighty-eight to ninety-nine per cent of our crops, our trees, or any form of vegetable growth. Practically, we know this is so ; for we can bring out in a bushel-basket all the ashes made from a load of wood that it might take a couple of yoke of oxen to draw in. A wood cord is about one hundred bushels ; in the ashes which contain the minerals that entered into the make-up of that wood, we get not more than two percent of this.