Books › Old Violins And Their Makers, 1883 › scan 295
Scan 295
Old Violins And Their Makers, 1883
4 lines. Read by computer on 27 September 2026. Printed page 281. See the scan on archive.org.
1soon the alcohol forsakes the essence, and the two liquids become clear again. It was nevertheless tried; and, after the alcohol was eliminated in the manner above described, the essential oil remained charged with a certain degree of colour, but too feeble to resist exposure to the sun, even for two days. This result, however, proved that it was possible to charge the essence with some colour, and, after further experiments, it occurred to the operator to oxidise the essential oil before mixing it with the alcohol. This idea was, no doubt, suggested chiefly by the fact that the essential oils of two hundred years ago were not so carefully prepared as nowadays, when they are so well distilled that they are as colourless as the most limpid water, and less fitted to receive colour on that account. To oxidise the oil, a bottle was filled with it to the extent of two-thirds of its capacity, and left uncorked behind a window exposed to the action of the sun, which hastens the operation. After about two months' exposure it mixed perfectly with the alcohol, having been shaken up every two or three days, in order to present fresh surfaces to the action of the air. At the end of the first month it was tested by pouring out a little into a phial, and adding alcohol. If the reader, in adopting this test, find that the liquids separate, he should put the bottle back in its place and continue thus testing from week to week until the two liquids are found to unite perfectly. It will take from six weeks to two months to complete the operation.
3With this oxidised essential oil of turpentine an alcoholic solution of red sandal wood was mixed, and
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