CEMENTS. 



85 



through fuel already ignited, will consume 



the gas arising from fresh fuel, provided 



the strata of ignited fuel be not too thick, | 4'C. — Take quick lime and white of eggs, 



and the supply of fresh coal be in proper or old thick varnish, grind and temper 



CEiMENTS. 



A Cement for broken China, Glass, 



proportion. The proportion of ignited 

 anthracite and the fresh supply may be in 

 the relative proportion as two to one — 

 thus two inches in thickness of ignited 

 coal (each piece not to exceed half an inch 

 diameter upon the grate of a stove,) and 

 one inch of fresh coal of the same dimen- 

 sions, is said to answer as well. — Ed. Ob. 



To suppose that green wood will cause 

 more heat than dry is absurd.. 



To remove ice from door steps, throw 

 on salt, it will cause the ice to crack, and 

 become loose, when it may be easily re- 

 moved. 



Salt should be regularly fed to cattle 

 both in winter and summer. They will 

 never eat too much, if it is placed continu- 

 ally before them, where they can obtain it 

 at all times. The best way to feed them 

 with it, except when snow is on the 

 ground, is to employ salt troughs for the 

 purpose, which are made most convenient- 

 ly by making a deep cavity in the convex 

 side of a short thick piece of slab, or a chip 

 from scoring timber, to be kept filled with 

 salt, and placed flat upon the ground. 

 They are very cheap, and will not easily 

 upset. In winter, when the ground is co- 

 vered with snow, salt should be supplied 

 by brining the fodder. 



Use spirits of turpentine to remove 

 grease spots from clothes. It dissolves 

 the grease, and then soap the more easily 

 removes it. Grease may l)e removed from 

 undyed woollen by a solution of pearl ash. 

 Lime spots on woollen cloths may be 

 completely removed by strong vinegar. 

 The vinegar effectually neutralizes the 

 lime, but does not generally effect the co- 

 lour of the cloth. Dark cloth, the colour 

 of which has been completely destroyed 

 in spots six inches square, has thus had its 

 original colour perfectly restored. The 

 whiteness of ivory handled knives may 

 be restored by rubbing them with fine 

 sand-paper or emery. 



The oftener carpets are shaken the 

 longer they last; as the particles of dirt 

 and sand which collect upon them grind 

 the threads. Sweeping them also wears 

 them. — Genessee Farmer. 



them well together, and it is ready for 

 use. Drying oil and white lead are also 

 frequently used for cementing china and 

 earthen ware; but the cement requires a 

 long time to dry. Where it is necessary 

 the vessel should endure heat or moisture, 

 isinglass glue, with a little tripoli or 

 chalk, is better. 



J2 Cement useful for Turners. — Take 

 rosin one pound, pitch four ounces; melt 

 these together, and while boiling hot, add 

 brick dust, until, by dropping a little upon 

 a stone, you perceive it hard enough; then 

 pour it into water, and immediately make 

 it up into rolls, and it is fit for use: or, 

 take rosin one ounce, pitch two ounces; 

 add red ochre, finely powdered, until you 

 perceive it strong enough. Sometimes a 

 small quantity of tallow is used, according 

 to the heat of the weather; more being 

 necessary in winter than summer. Ei- 

 ther of these cements is of excellent use 

 for turners. By applying it to the side of 

 a chuck, and making it warm before the 

 fire, you may fasten any thin piece of 

 wood, which will hold while you turn it; 

 when you want it off again, strike it on 

 the top with a suitable tool, and it will 

 drop off immediately. 



Ji strong Cement for Electrical pur- 

 poses. — Melt one pound of rosin in a pot 

 or pan, over a slow fire, add thereto as 

 much plaster of Paris, in fine powder, as 

 will make it hard enough, which may be 

 soon known by trial; then add a spoonfull 

 of linseed oil, stirring it all the while, and 

 try whether it is hard and tough enough 

 for your purpose. If it is not sufficiently 

 hard, add more Plaster of Paris; and if not 

 tough enough, a little more linseed oil. 



This is as good a cement as possible for 

 fixing the necks of globes or cylinders, 

 or any thing else that requires to be 

 strongly fixed; for it is not easily melted 

 again when cold. Or take rosin one 

 pound, beeswax one ounce, add thereto as 

 much red ochre as will make it of suiE- 

 cient stiffness, pour it into water, and 

 make it into rolls, and it is fit for use. 



This cement is useful for cementing 

 hoops on glasses, or any other mounting 

 of electrical apparatus. 



