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SNUF

Sloes. The fruit of the Prunus spinosa. Are used for giving a colourand rough astringent flavour to wines, particularly factitious port.The juice is also used for marking linen permanently.

Smalt is a colouring material used in painting, and in the laundry. Itis procured by roasting cobalt with sand and potass. See OilColours.

Smellom's Eye Ointment. Take $ss of aerugo finely powdered,triturate with Tt^xxx of olive oil, then add 5J of resinous cerate(Yellow basilicon ointment).

Smilap. See Sarsaparill/e Radix.

Snuff is most commonly manufactured from dried leaves of tobacco, butwith numerous additions and adulterations. Tobacco, when usedas snuff", appears to evince some of its narcotic or sedative propertieson the nerves, and consequently none of the errhines commonly usedas substitutes answer sufficiently.Adulterated with inferior sorts of powdered tobacco, and frequently withother brown vegetable powders, particularly those which are destituteof smell. It is also adulterated with the sweepings of snuff-shops,old rotten wood, commonly called powder post, and coloured withDutch pink, ochre, or umber, and moistened with treacle, or molasses,or urine, to give it the moist oiliness of genuine snuff. The powderof Spanish nutshells is the least deleterious of the ingredients used.Common salt is added to increase its weight; and powdered glass,white sugar, sugar-candy, and muriate of ammonia to make it morepungent.

Frauds of this description may be detected by laying a little of thesnuff" very gently on the surface of a glass of water, when the ge-nuine tobacco-powder will float or sink very slowly, and the grossermaterials will sink quickly. This, however, will not detect nutshellpowder, and other vegetable matters; but the flavour of these may beproved by filling a tobacco-pipe with the snuff", and smoking it.Those snuffs also, which are of the greatest bulk, according to agiven weight, may be considered as the best and most genuine.

Cephalic and Eye Snuff. See Cephalic and Eye.

Lundyfoot's Snuff, which has a burnt odour, somewhat like malt, isprepared by partially torrefying the materials, and is imitated bymoistening any light-coloured snuff'with empyreumatic oil.

Macouba Snuff' owes its flavour and perhaps its greater sedative powersto the previous fermentation of the tobacco leaves by moistening themwith cane-juice, and probably producing in this way an acetate ofthe narcotic principle of tobacco, if such exist, as there is reason tobelieve there does.

Perfumed Snuffs are made by moistening them with the particular