290 On the vclocitij of light. [J{il^- 



man^ Chinese, and a singular square kind of silver coins, 

 specimens of which have been found in Hindustan, as 

 ■well as in the south. 



13. Collection oi an cie7}t sculptures illustrative of the 

 state and cultivation of the arts and sciences, aided 

 by drawings from ancient remains, hitherto unnoticed 

 throughout the peninsula ; and in the oriental islands 

 of Java, Bali, &c. 



14. Drawings and views of hv 'ddings, explaining the 

 style and various kinds of architecture. 



15. Drawings of the costume of the inhabitants of In- 

 dia, and of the Islands ; illustrative of descriptions of 

 the several tribes and castes, their peculiar manners, 

 customs, &c. &c. 



16. The population and subdivisions of castes ascer- 

 tained and illustrated by enumeration, by houses, and by 

 families, through the late dominions of Mysore, and in 

 the island of Java; the authenticated tab'es of which 

 are annexed to the descriptive memoirs of provinces. 



f To be continued. J 



y. — On the velocity of light. — By Astronomicus. 

 To the Editor of the Madras Journal of Lit. Science. 

 Sir, 



The attainment of a knowledge of the higher branch- 

 es of Mathematics so necessary to the study of Astro- 

 nomy is a difficulty which I apprehend deters many of 

 the otherwise well informed and clever from even a su- 

 perficial knowledge of this science, wdth this in view it 

 has of late years been the habit of writers to divest their 

 essays as much as possible if not altogether of any 

 thing like analytical investigation, or in other words 

 popular treatises upon the various branches of science 

 have taken the place of more elaborate productions : at 

 first sight it might appear objectionable to allow a loose 

 or taken for granted sort of information to supply the 

 place of a more solid and erudite investigation^ but in 



