American journal of pharmacy . hey are subject to a winter of seventy to eightynights of frost, with an occasional minimum temperature as low as12° to 16° F. The most northern localities in the United States,so far as known at this Department, where the camphor tree has Am. Jour. 1897. CampJior Tree. 509 been grown successfully out of doors, are Charleston and Summer,ville, in South Carolina, Augusta, Ga., and Oakland, Cal. At Charleston, Summerville and Augusta the trees have with-stood a minimum temperature of 15° F., but they have been pro-tected by surrounding trees and buil
American journal of pharmacy . hey are subject to a winter of seventy to eightynights of frost, with an occasional minimum temperature as low as12° to 16° F. The most northern localities in the United States,so far as known at this Department, where the camphor tree has Am. Jour. 1897. CampJior Tree. 509 been grown successfully out of doors, are Charleston and Summer,ville, in South Carolina, Augusta, Ga., and Oakland, Cal. At Charleston, Summerville and Augusta the trees have with-stood a minimum temperature of 15° F., but they have been pro-tected by surrounding trees and buildings. At Mobile, Ala., thetrees have grown and fruited in protected situations, while in ex-posed places they have been repeatedly destroyed by frosts. Whilethe camphor tree will grow on almost any soil that is not too wet,it does best on a well-drained sandy or loamy soil, and it respondsremarkably well to the application of fertilizers. Its growth is com-paratively slow on sterile soils, but under favorable conditions it. Fif[. 2.—Map showing approximate areas where the camphor tree may begrown in the United States. In the dotted area protection from cold will berequire<l. In the line-shaded area protection will not often be required, exceptin exposed situations and on the mountains of California. sometimes grows very rapidly. An instance is recorded of a cam-phor tree in Italy a foot in diameter and 90 feet high, eight yearsfrom the seed. Under ordinary conditions, however, such a girthis not often attained in less than twenty-five years, and such a heightis rarely attained in a century. Under favorable conditions an aver-*^gc of 30 ^cet in height, with trunks 6 to 8 inches in diameter at thebase, may be expected in trees ten years from the seed. 510 Camphor Tree, {^ocSr.^im USES OF THE TREE AND ITS PRODUCTS. The principal commercial uses of the camphor tree are for theproduction of camphor gum and camphor oil. Camphor gum isemployed extensively in medicine. It ente
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