1832.] Scientific Intelligence. 305 



also was refused from the state of the revenue. Sir David fears therefore 

 that he shall be obliged to re-transmit the sum subscribed towards the Lens in 

 India. This would indeed be a mortification, and we cannot help thinking, 

 that if the grand Polyzonal Lens can really be completed at an expence of £\20, 

 the patrons of science in India would rather make up the whole sum required 

 than abandon, on such an unworthy consideration, an experiment of national and 

 universal interest. 



4.— Litharge of Ava. 



In the examination of Ava minerals, printed in No, I. of this Journal, I expressed 

 some doubt as to whether a specimen of crystallized litharge there described was a 

 natural ore or an artificial product : the following passage in a letter from Major 

 H. Burney sets the matter at rest. P. 



" Mr. Lane, upon further inquiry, ascertained that the litharge was not a natural 

 but an artificial production. It was brought however from the Shan territory, 

 and there is always much difficulty in obtaining correct information regarding 

 the productions or proceedings of the Shan race." — Rangoon, 4th June, 1832. 



5. — Timber Trade in Cachar. 



Timbers sold in Cachar are divided into three kinds, called Gundah, Dum, and 

 Kari. Gundahs consists of Jarul only, and are used chiefly in Sylhet for boat 

 building They are sold at two rates, according to their size. Those timbers 

 which are less than ten haths in length and six muts in circumference are called 

 Pyah, and are worth about 27§ Rupees each on an average ; but those above that 

 size are sold by the khali, which is a measure derived from a rude and inaccu- 

 rate mode of estimating the cubic contents of the timbers, in which they are 

 assumed to be regular parallelopipedons, thus : 10 haths X 6 muts X 6 muts, 

 360 parts, of which 250 make a khali ; the value at present of which is about 

 3 Rs. 6 annas. Six muts make a hath, and the hath is equal to 20 inches. 



The following table includes various kinds of timbers used chiefly for posts, 

 beams, and small boats. The prices of these are in proportion to their size, but 

 may be stated just now as here given : — 



Nagisar, 1 



Cham, V-25 haths by 3| haths in cir. from 10 to 12 Rupees each. 



Awal, J 



Teylo, 1 



Sunid, 



Morye, )» 25 hauts by 3* hauts in cir. from 9 to 11 Rupees. 



Gandru, 



Garner, J 



Silratta, "] 



Sepai, j 



Gandi, ? 25 hauts by 3§ hauts in cir. from 8 to 10 Rupees each. 



Jam, j 



Chika, J 



Kari, consists of smaller trees running from 9 to 12 haths in length, which 

 are sold in lots at from 1 to \\ cawns per hath measured on the girth. The 

 following are included in this class : 



Ratta, Pumar, Karil, Kurta, Joki, Singra, Chatni, Singtajah, Singdrine, 

 Haris, Puari, and many others. 



