USEFUL INFORMATION". 



the varnish ready for use, and the other containing- the proper 

 mixture of ether, alcohol and olive oil, to use in thinning the 

 varnish when it g-ets too thick. This is a very superior varnish 

 being 1 absolutely colorless, and of high gloss. 



The irir/,rrx/H 'i,in r Solution for ihe Preservation of FI<'*/i>/ 

 Objects Entire. 



Alum 500 grains. 



Salt 125 " 



Saltpetre CO " 



Potash 300 " 



Arsenic trioxide (white arsenic) 100 " 



Dissolve in one quart of boiling water. Cool and filter, 

 and for every quart of solution add four quarts of glycerine and 

 one quart of alcohol. Immerse the objects to be preserved in 

 this solution, and keep them in it. It is but little else than 

 our old familiar friend, the salt-and-alum bath, with enough 

 glycerine added to prevent the excess of alum from unduly 

 hardening and shriveling the specimens. 



Composition for Use in Modeling Tongues, Mouths, and in General 

 Fancy- Work. " Procure 3 pounds white glue, 1 pint raw linseed 

 oil, and 1 pound of resin. Heat the oil and resin, then add hot 

 glue and stir thoroughly. Thicken with Paris white until the 

 mixture has the proper consistency to mould when warm. This 

 composition soon dries, becomes very hard, and can be colored 

 or gilded. Fancy decorations of any design can readily be 

 made from moulds of plaster or wood, and be glued on to shields 

 and cases, thereby saving the expense of carving. The above is 

 my own composition, which I have successfully employed for 

 many years." (/. H. Batty.) 



( 'nittjinxifioii for Snow Scenes." Crush burnt alum with a roller, 

 and remove small lumps. Add frosting, which has been pulver- 

 ized in a mortar to the proper degree of fineness." (Baffi/.) 



I'di-nix/i Cnffrr (to remove old varnish from antlers, teeth, 

 wood, or from the surface of an old oil-painting). Take a suffi- 

 cient quantity of eighty or ninety per cent, alcohol, and slowly 

 pour into it clear spirits of turpentine until the mixture be- 

 comes of a milky color. Then cork the bottle and shake the 

 mixture thoroughly, and it is ready for uss. Apply it with a 

 small sponge, rub the surface vigorously for a moment only, 



