Canada balsam

Definition and stakes

Various,  Encyclopaedia Britannica, 11th Edition…

“ Canada balsam or Canada turpentine is the oleo-resin yielded by Abies balsamea, a tree that grows in Canada and the northern parts of the United States. It is a very transparent substance, somewhat fluid when first run, but thickening considerably with age, possessed of a delicate yellow colour and a mild terebinthous odour. It contains 24% of essential oil, 60% of resin soluble in alcohol, and 16% of resin soluble only in ether. Its chief uses are for mounting preparations for the microscope and as a cement for glass in optical work. ”
Source: Gutenberg

C. Deite,  A Practical Treatise on the Manufacture of Perfumery

“ As adulterants, are used: Alcohol, volatile oils, fat oil, especially castor oil; further, copaiba balsam, Canada balsam, gurjun balsam, storax, benzoin, and asphaltum. The establishment of these adulterants is connected with difficulties; but the properties of Peru balsam are so characteristic that it is quite easy to detect whether it is genuine and pure, or not, the specific gravity and proportions of solubility deserving especial attention in this respect. ”
Source: Gutenberg

Friedrich A. Flückiger,  Pharmacographia (1879)

“ He found 16 per cent. of oil and three different amorphous resins, one of which had the composition of abietic acid.
Production and Commerce—Canada balsam is obtained either by puncturing the vesicles which form under the suberous envelope of the trunk and branches, and collecting their fluid contents in a bottle, or by making incisions. It is obtained principally in Lower Canada, and is shipped from Montreal and Quebec, in kegs or large barrels. In the neighbourhood of Quebec, about 2000 gallons (20,000 lb.) used to be collected annually
”
Source: Gutenberg

Get perspective with Kwize: daily news enlightened by great literature