6315. New Glazing; for Frescoes

6315.    New Glazing; for Frescoes. Dr. Vohl announces that paraffine, mixed with benzole or Canada balsam, affords a glazing for frescoes much superior to soluble glass. By covering the interior of wine casks with a film of pure white paraffine, poured in melted, he has effectually prevented the spoiling of the wine and its evaporation through the wood.

6316. To Bend Gas Pipe

6316.    To Bend Gas Pipe. This may be done by filling the pipe with melted resin. When the resin hardens, bend the pipe, and it will retain its round form. Remove the resin by heating.

6317. Chewing Gum

6317.    Chewing Gum is made as follows: Take of prepared balsam of tolu, 2 ounces (see second receipt in No. 5102); white sugar, 1 ounce; oatmeal, 3 ounces. Soften the gum in a water-bath and mix in the ingredients; then roll in finely-powdered sugar or flour, to form sticks to suit.

6318. Chewing Gum from Paraffine

6318.    Chewing Gum from Paraffine. This article may be made by dissolving paraffine at a gentle heat in a very little olive oil and glycerine. It is stirred on cooling, and afterwards compressed. The amount of glycerine depends on the consistency to be desired, and must be determined by tho character of tho paraffine employed. This latter consists of mixtures of various carbo-hydrides, and is by no means always of tho same composition and properties. The glycerine will keep it soft and make it sweet at tho same time.

6319. Boot Powder

6319.    Boot Powder. Scraped or powdered French chalk is used by bootmakers to make new boots or shoes go on easily, by rubbing or dusting a little of it on the inside of the heel and instep of the boot.

6320. Electric Tissue

6320.    Electric Tissue. Steep linen or cotton 1 hour in a mixture of 1 part strong sulphuric acid and 3 of pure nitric acid; squeeze out tho acid, wash with water until no sensible acidity remains, plunge it in a weak alkaline solution, then in water, and dry. By friction it yields a large quantity of resinous electricity.

6321. To Make Modeling Clay

6321. To Make Modeling Clay. Knead dry clay with glycerine instead of water, and a mass is obtained which continues moist and plastic for a length of time, thus removing one of the greatest inconveniences experienced by the modeler.

6322. To Remove Stains from Knives

6322.   To Remove Stains from Knives. The very best way to clean a stained steel knife is to cut a solid potato in two, dip one of the pieces in brick-dust (such as is usually used for knife-cleaning), and rub the blade with it.

6323. To Prevent Ivory Knife Handles from Cracking

6323.    To Prevent Ivory Knife Handles from Cracking. When the blades of knives require washing or standing in water, it should be done in a pitcher, with water enough to cover the blades, but not to touch tho handles; and the water no hotter than is absolutely necessary. Soaking the handles in water makes them crack.