Take a piece of marble or some other substance very smooth, true, and level, lay on this the glass you wish to silver, then make a ridge of putty on the marble against the edge of the glass all round it, so that you can pour quicksilver on the glass until it is all covered over, and will be prevented from running off by the ridge of putty; an inch or two, or three outside this ridge make another of putty; then cover the quicksilver on the glass all over with tin-foil, and press it firmly but cautiously against the glass until you have squeezed out all the quicksilver you can.  While you press this, you may remove part of the first ridge of putty to give the quicksilver a chance of escape.  When it is well pressed against the glass there will be an amalgam formed of the tin-foil and the quicksilver that is left, which will firmly adhere to the glass.  By this means you have a very beautiful and cheap looking-glass; the quicksilver that escapes, being saved by the second ridge of putty, may be used again.

26.  Silvering looking-glasses with pure silver

Prepare a mixture of 3 grains of ammonia, 60 grains of nitrate of silver, 90 minims of spirits of wine, 90 minims of water; when the nitrate of silver is dissolved, filter the liquid and add a small quantity of sugar (15 grains) dissolved in 1-1/2 oz. of water, and 1 1/2 oz. of spirits of wine.  Put the glass into this mixture, having one side covered with varnish, gum, or some substance to prevent the silver being attached to it.  Let it remain for a few days and you have a most elegant looking-glass, yet it is far more costly than the quicksilver.

27.  Patent burning fluid

To 1 gallon of 95 per cent. alcohol, add 1 quart of camphene oil; mix and shake well, and if transparent it is fit for use, if not, add sufficient alcohol, shaking it well, to bring it to the natural colour of the alcohol.  It may be coloured to suit the fancy by adding a little tincture of golden seal, or any other colouring drug.  This receipt has been sold for $10.

28.  Burning fluid

Take 4 quarts alcohol, and 1 quart spirits of turpentine; mix well together, and it is ready for use.

29.  Non-explosive burning fluid

Take 1 gallon 44 proof alcohol, 1 quart camphene, 3 oz. of alum pulverized, 1/2 oz. camphor gum, 65 drops cuicuma; mix all together and let it stand 12 hours, and it is ready for use.

30.  Vinegar in three days without drugs