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Scan 301
Old Violins And Their Makers, 1883
4 lines. Read by computer on 27 September 2026. Printed page 287. See the scan on archive.org.
1as shown in the cut, by means of a paper, cardboard, or other convenient filler, and the heated water will leave the sheath at (8) and fall into the basin or other receptacle you may set there for that purpose. If the ebullition of the spirit in the flask become too violent, withdraw the flame; the distillation will go on for some time without the direct heat. Replace the flame when necessary until only about a fourth of the spirit remains in the flask, then withdraw it and let the spirit become quiet, and pour it out into some odd bottle, recharging the flask with fresh spirit to the same bulk as at first. You need not pour out the quicklime, as it will serve twice. It is better to begin by having the spirit and quicklime together in the flask for a couple of days before distilling, as it thus more completely isolates the water with which the spirit is mixed. By the above means you will get what alcohol you require of a purity amply sufficient for your purpose, and having a specific gravity of about .812. Care must be taken to have the water in the pan under the level of the spirit in the flask, otherwise you might break the flask and lose your labour.
3In order to colour the oxidised essential oil of turpentine, take an annealed glass flask of the capacity of two pints, such as is used for chemical purposes, and costing a few pence. Graduate it on the outside into sixteen equal parts. Into this flask pour about three gills of your coloured alcoholic solution, or three-and-a-half gills if you wish a stronger tint. Make a concentrated extract by evaporating the solution until it is reduced one-half, which you will determine by means of the marks you have made outside. This reduction
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