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XIV. Proce/s for producing the Lights in Stained Drawings. 
By Mr, Francis Nicuotson, of Rippon, York/bire*. 
Tu difficulty of preferving the lights in ftained draw- 
ings, with freedom and precifion, is fo univerfally felt by thofe 
who cultivate that branch of the arts, the practice of which 
is every day growing more extenfive, that the ftatement of 
this circumftance alone is fufficiént for the introduction of 
the following procefs, by which that difficulty is removed, 
and by which all the effec of body-colour may be obtained 
without any of its inconveniences or defects. It is appli- 
cable to every fubject, to the richnefs of foliage, of rocks, or 
of foreground ; and in ruins, their moft picturefque appen- 
dages of hanging fhrubs, weeds, &c. may be expreffed by it 
with the utmoft fharpnefs, and with all the lightnefs and 
freedom of which body-colour or oil-painting are capable. 
The principle of this procefs confifts in covering the places 
where the touches of light are intended to be, with a com- 
pofition not liable t6 be difplaced By wathing over it with 
the colour, and fuch as may be afterwards removed by a fluid 
in which the colours ufed in water are not foluble. 
This compofition, or {topping mixture, is made by diffoly- 
ing bees-wax in oil of turpentine, in the projrtion of one 
ounce of wax to five ounces of the oil; and, as near the time 
of ufing it as may be convenient, grind with the pallet-knife 
as much flake white, or white lead, in oil of turpentine, as 
Inay be wanted at one time; dilute it with the above foly- 
* The Society for the Encouragement of Arts, &c. haying lat feffion 
received from Mr. Nicholfon, of Rippon in Yorkfhire, a Drawing in+ 
tended as a fpecimen of the procefs for producing the lights ia ftained 
drawings, by removing, after the thadows are wafhed in, the colour where 
the lights are required, giving by this means the effet of body-colour 
with greater clearnefs, and without any of its difadvantages; and it Ap» 
pearing that Mr. Nicholfon’s method of tinting drawings promifes to be 
of ufe in the prattice of drawing in water-colours, and produces « more 
Spirited effeét, the Soc ety agreed to My. Nicholion’s propofal, and pur- 
chafed from him, at the price of twenty guincas, the complete procefs for 
performing the work, as communicated in the above paper, 
Ka tien 
