DURING THE MIDDLE AGE. 123 



art was carried to perfection in the 1 6th centu- 

 ry: From which time it lias fallen infenfibly into 

 decay; in fo much, that there is reafon to fear, 

 it is now totally lofl. 



The method of painting in enamel is nearly 

 the fame as in glafs. Raphael Sanzio and Mi- 

 chael Angclo Buonarotti were the firfl in Italy 

 who carried this anticnt art to any height. Ne- 

 ri aflirms *, that pictures were made in this man- 

 ner by the means of ji Limp, in the year 1601; 

 jmd that John Toutin a French goldfmith ren- 

 dered them afterwards much more perfecl f. 



The art of imitating gems engaged confidc- 

 rably ihc attention of the alchcmifts. R. Lulli- 

 us is fuppufed to have made great proficiency in 

 it, and Ifaac J Jollandius ilill more about the be- 

 ginning of the fcvcnrh century J. Ncri labour- 

 e-d yet further in this purfuit. He collected all 

 the various procefTes of others, examined them 

 rarcfully, and publiflied thofc that he thought 

 were moft likely to fuccccd. He knew in what 

 manner red glafs was prepared with gold, and 

 taught how to ftain it with any other colour. 

 He delcribcs the preparation of ultramarine and 

 lac, and makes mention of the Picdmontcfe 

 magnefia. 



Some of the more anticnt amaitfa of a bluifli 



colour 



* Arn vitr. c. 42. 

 j- Diet, dcs arts cl.Jrj metiers. 

 ^ Op rr.in 1, i. c. 7'^ ii. c. 89. 

 A ki;ul af femi-iifllucid ftouOi of which the anticnta 

 vafus and other vrifcit. 



