. American bee journal. Bee culture; Bees. Sept. 29, 1904. THE AMERICAN BEE JOURNAL. 663 different. Like sugar, the starches can be inverted, but ibe transformation is more difficult. Practically it is done by sub- mitting the starch to the action of strong sulphuric acid with enough water to keep the resulting glucose dissolved. If absolutely pure, the glucose is nothing but the same levulosc that exists in the honey. Often the word glucose is applied to the dextrose as well as to the levulose or any mixture of the two. After the transformation has taken place, tlie acid and the glucose are b
. American bee journal. Bee culture; Bees. Sept. 29, 1904. THE AMERICAN BEE JOURNAL. 663 different. Like sugar, the starches can be inverted, but ibe transformation is more difficult. Practically it is done by sub- mitting the starch to the action of strong sulphuric acid with enough water to keep the resulting glucose dissolved. If absolutely pure, the glucose is nothing but the same levulosc that exists in the honey. Often the word glucose is applied to the dextrose as well as to the levulose or any mixture of the two. After the transformation has taken place, tlie acid and the glucose are both together dissolved in the water. The question comes now to separate the sulphuric acid. This is done by adding just enough lime to combine chemically with the sulphuric acid. The product of this combination is noth- mg more nor less than plaster of Paris. As this cannot be dissolved in water, it assumes the solid state, and can be stparated by filtration. All that looks very nice on paper. Practically it is not so. There are practical difficulties to surmount, and the result is that the glucose or syrup found in the market con- lain more or less sulphuric acid, lime or plaster. Further- more, neither the lime nor the sulphuric acid used are pure, and some of their impurities cannot be separated from the mixture. The worst of these impurities is the arsenic fre- quently contained in the sulphuric acid. It may be ex- plained here that the mineral from which the sulphuric acid is •extracted, usually contains some arsenic. As a matter of fact, cases of poisoning through the use •of glucoses containing arsenic have occurred several times. Knox Co., Tenn. Rearing Queens—Methods Considered. BY G. M. DOOLlriLE. I have received the following letter to the Editor, for- warded to me for reply .in the American Bee Journal: Mr. Editor :—I have a word in connection with Mr. Doo- little's article on page 550. which I consider of value. We find his plan is to put royal jelly into t
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Keywords: ., bo, bookcentury1800, bookdecade1860, booksubjectbees, bookyear1861
