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XTCT. 'Different Methods employed in Encaujlic Painting, etc- 

 cording to the Principle followed by the ancient Greek and 

 Roman Painters, difcovered by the Abbe Re^ijeno, and 

 Jince praclifed with much Succefs at Rome. Communi- 

 cated by Mr. Charles Heathcote Tatham, Ar- 

 chitect. 



J. HE following receipt for painting in encaiijlo, copied 

 from an original paper, was prefented to Mr. Tatham, at 

 Caferta near Naples, by Mr. Philip Hackert, painter to his 

 Neapolitan Majefly. It exemplifies the mode hippofed to 

 be pra&ifed by the ancients in their arabefque. After this 

 manner a large bath was decorated in a cafino of the king of 

 Naples at Belvidere near Caferta, the walls and vaulted 

 cieling of which were entirely covered with encaufto, under 

 the direction of Mr. Hackert, who was fo obliging as to 

 accompany Mr. Tatham to vifit the fuccefs of it, which he 

 did, much to his fatisfaclion, when upon his travels in the 

 year 1795. 



The firft preparation is as follows : Infufe a pound of gum 

 tragacanth * in a proportionate quantity of water, for twen- 

 ty-four hours, in an earthen veffcl. When this folution is 

 pretty thick, add to it mineral colours of any fort, broke 

 into pieces without being pounded, and which muft afterr 

 wards be prepared in the following manner ; 



Put an ounce of white wax and an ounce of gum 

 tragacanth into a fmall earthen yeflel well glazed, toge- 

 ther with two or three pounds of water, and keep the vef- 

 fcl over a brifk fire, that the ingredients may become li- 

 quid, ftirring them continually with a fmall flick. When 

 the whole are well ditiblved, take the vefieJ from the fire, 

 and, after the liquor has cooled, fkim off the wax from 

 the furface. The oily parts of this wax are left in the 

 gum water, which muft be afterwards ftrained through a 

 piece of linen cloth. This liquid and the colours prepared, 



* Commonly called gum dragon. 



vith. 



