Rust Joint. Quick Setttng

1 Lb. Sal Ammoniac In Powder, 2 Lbs. Of Flour Of Sulphur, 80 Lbs. Iron Borings. Made To A Paste With Water.

Slow Setting

2 lbs. sal ammoniac, 1 lb. of sulphur, 200 lbs. iron borings. This latter cement is best if the joint is not required for immediate use.

For Steam Boilers, Steam Pipes, Etc. Soft

Red Or White Lead In Oil, 4 Parts; Iron Borings, 2 To 3 Parts.

Hard

Iron borings and salt water, and a small quantity of sal ammoniac with fresh water.

Maltha, Or Greek Mastic

Lime and sand mixed in the manner of mortar, and made into a proper consistency with milk or size without water.

For China

Curd of milk, dried and powdered, 10 07.; quicklime, 1 oz.; camphor, 2 drachms. Mix, and keep in closely stopped bottles. When used, a portion is to be adzed with a little water into a paste.

For Earthen And Glassware

Heat the article to be mended a little above 212°, then apply a thin coating of gum shellac upon both suffaces of the broken vessel. Or, dissolve gum shellac in alcohol, apply the solution, and bind the parts firmly together until the cement is dry.

Holes In Casting

Sulphur in powder, 1 part; sal ammoniac, 2 parts; powdered iron turnings, 80 parts Make into a thick paste. The Ingredients composing this cement should be kept separate, and not mixed until required for use.

For Marble

Plaster of Pasts, in a saturated solution of alum, baked in an oven, and reduced to powder. Mixed with water. It may be mixed with various colors.

For Marble Workers And Coppersmiths

White of egg, mixed with finely sifted quicklime, will unite objects which are not submitted to moisture.

Transparent For Glass

Tndla rubber, 1 part in 61 of chloroform; add gum mastic in powder, 16 to 24 parts. Digest for two days with frequent shaking.

How To Mend Iron Ware

Sulphur, 2 parts; fine black lead, 1 part. Put the sulphur in an iron pan over a tire, until it melts, then add the lead; stir well; then pour out. When cool, break into small pieces. A sufficient quantity of this compound being placed upon the crack of the ware to be mended, can be soldered by an iron.

For Cisterns And Water Casks

Molted glue, 8 parts; linseed oil, 4 parts; boiled into a varnish with litharge. This cement hardens in about 48 hours, and renders the joints of wooden cisterns and casks air and water tight.

Hydraulic Cement Paint

Hydraulie cement mixed with oil forms an Incombustible and waterproof paint for roofs of buildings, out-houses, walls, etc.

Entomologists' Cement

Thick mastic varnish and isinglass size, equal parts.