Prof. Royle’s Lecture on the Great Exhibition of 1851: 161 
losophers. That the Hindoos were among these, I have at- 
tempted to prove in a separate work,* where I have shown the 
probability of the Arabs having obtained much of their informa- 
tion from Sanscrit works, still in existence. 
Chemistry, it has been inferred, must have originated in al- 
chemy ; but it appears to me that it must have originated wher- 
ever the arts began to be practised: for in seeing the wonderful 
changes which take place during the action of heat, and some o 
the most common re-agents, people may easily have been led to 
believe even in the transmutation of metals. 
this would equally prove that they must have posse various 
Pharmaceutical Products.—In the present state of the cote 
cal arts, advanced as they have been by the cultivation of the 
therefore, have been sent 
bazaars of India, except as curiosities. But there are 
others, prepared under Rarobiae superintendence for the use of 
the public setvice, which are excellent in quality ; and I know 
Bi ey ee a reer ren ee 
* “Essay on the Antiquity of Hindoo Medicine.” 
Secoyp Seems, Vol. XIV , No, 41.—Sept., 1852. 21 
