508 XIV. APPARATUS AND CHESTS. 



Soft sealing ivax. Bees' wax 4lb., Venice turpentine lib., levig. 

 bole suff*. to give the requisite colour. 



Green soft wax. Colour with ppd. verdigris instead of bole: 

 both are used for sealing official papers, and as a cement. 



Wax lute. Bees' wax lb. j, melt and add linseed oil sufficient 

 to render it pliable : used as a cement which can be easily re- 

 moved. 



Seal engraver s cement. Common rosin and brick dust ; it 

 grows harder every time it is melted, but always remains inferior 

 to Botany Bay cement. 



Botany Bay cement. Yellow gum and brick dust of each p. 

 aeq., used to cement china ware. 



Gilders' wax. Cerae fl. lib. 8 oz., aerug. aeris, vitrioli albi, ana 

 8 oz., colcothar. 21b. 12 oz. ; the dry species must be powdered 

 very fine : borac. 4 oz. may be added. — 2. Cerae fl. 15lb., colco- 

 thar. 71b., serug. aeris, vitrioli albi, ana 3lb. 8oz., borac. 8 oz. — 3. 

 Cerae fl., colcothar. ana 41b., aerug. aeris 21b., borac, alum, usti, 

 ana 2 oz. — 4. Colcothar. 18lb., cerae fl. lOlb. 8 oz., serug. aeris, 

 vitrioli albi, ana 31b. 8 oz. 



Mummy, Mumia Egyptiaca. The mixed resinous mass with 

 which the Egyptian corpses have been preserved : used as a good 

 glazing colour, but it is long in drying. 



Callofs hard varnish for etching. Add to the soft varnish more 

 wax, so as to form a solid ball. 



Engravers stopping out varnish, Petit vemis. Lamp black 

 reduced to a thick consistence with spirit of turpentine. 



Black ball. Bees' wax 8 crz., tallow 1 oz., gum Arab, loz., 

 lamp black q. s. : used for blacking leather. 



XIV. APPARATUS AND CHESTS. 



Issue plasters, Sparadrapum pro fonticulis. Cerae fl. lb. ss, 

 minii tereb., Chiae, ana 3iv, cinnab., rad. irid. Flor. ana 5 j, mosch. 

 gr. iv ; melted, spread upon linen, polished with a moistened 

 calendering glass rubber, and lastly cut in small squares. — 2. 

 Diachyl. simpl. lb. j, rad. irid. Flor. 5J; spread, and polished. 

 — 3. Diachyl. simpl. 2lb., pic. Burg., sarcocollae, ana 4oz., tereb. 

 comm. 1 oz. ; spread and polished. 



CoiiN PLASTERS, Spar, viride. Cerae fl. 2lb., pic. Burgund. 

 12 oz., tereb. comm. 6 oz., aerug. ppas. 3oz. ; spread on cloth, cut 

 and polished. — 2. Bees' wax 1 oz., rosin 2 dr., Venice turpentine, 

 blue vitriol, of each 4 dr., arsenic 5ss ; mix. 



M 



