C 12 3 3 



conftitutions, want but little to be done to 

 them, and an honeft and able profeffor in 

 either art, will do but little. Ignorance, on 

 the other hand, is always ralh and med- 

 dling ; and the defign of my work is to guard 

 againft the rafhnefs and active ignorance of 

 quacks. But were the mafs of profeffors 

 in your art to mix theory with practice; 

 were they to ftudy the works of painters, 

 and to compare them with nature; were 

 they to do fo with as much diligence, as 

 the eminent profeffors of medicine ftudy 

 the works of former phyficians of every age 

 and country, and compare their do6trines and 

 experiments with the varying characters of 

 difeafes in real fubjects — the refpectability 

 of the profeflion would be effectually eftab- 

 lifhed, and we fhould confult the profeffors 

 of either art w T ith equal confidence in their 

 Ml. 



Whatever effect my recommendation 

 may produce, believe me your profeflion is 



ill 



