THE HORSE. 



87 



with the solution of oxymuriate of mercury, 

 but as the putrefactive process was not thus 

 sufficiently stopped, without dissecting off 

 the skin I immersed it in the solution of 

 oxymuriate of mercury for several days ; 

 and, as no marks of putrefaction remained 

 (the offensive smell being entirely removed), 

 I then put it into a vessel containing a 

 large quantity of water for two or three 

 days more, by which means nearly all the 

 solution was removed from it. I was thus 

 able to proceed with the dissection during 

 the hot weather, without being in the least 

 incommoded either by the smell or soreness 

 of the hands, and without finding the instru- 

 ments acted upon in any degree, that ren- 

 dered the process at all objectionable. By 

 putting a wet cloth over it when I left it, I 

 was further enabled to make a very minute 

 dissection of the nerves, which I could not 

 otherwise have done,' without the use of a 

 large quantity of spirits of wine, and then 

 not with half the convenience and pleasure 

 I have thus experienced. 



ON VARNISHES AND PAINTS. 



The following are the recipes for the 

 manufacture of paints and varnishes: 



WHITE VARNISH. 



Canada balsam, spirits of tm'pentine, of 

 each three ounces ; mastic varnish, two 

 ounces. Put them into a bottle and shake 

 them together until they are properly 

 mixed. 



MASTIC VARNISH. 



This may be made by putting four 

 ounces of powdered mastic into one pint 

 of spirit of turpentine, to be kept in a 

 stoppered bottle. It should be shaken every 

 day until the greater part of the mastic 

 is dissolved. 



TURPENTINE VARNISH. 



Turpentine varnish is made by melting 

 Venice turpentine over a slow fire, and add- 

 ing to it as much spirits of turpentine as 

 will reduce it to the consistence of syrup. 



WHITE PAINT. 



Three ounces of the best white paint, 

 and one ounce of spirit of turpentine, are 

 to be put into a bottle and shaken together. 

 When it is used with the varnish, a bottle 

 of each should be mixed together. 



PAINT FOR THE MUSCLES. 



This is made by grinding on a slab a 

 small quantity of " /aA;e," with white var- 

 nish, to which one-fourth part of turpen- 

 tine varnish has been added. 



Dr. Parsons directs that varnish should 

 be laid on with a fine camels'-hair pencil 

 brush, as large as occasion may require. 

 Hollow preparations should have the var- 

 nish poured into them, and, after turning 

 them about in aU directions, it is to be 

 drained out as clear as possible. 



