MINERALOGY, 4& 



Interest on Purchase. £ s. d. £ s. d. 



Six months© 5 per cent. ••• 2 4 



Freight % £ 3 per ton, 3 20 ? 



68 4 



Sale price per Mr. Bolitho, «•• 56 



Leaves a loss of per cwt. ••• 12 4 



Another calculation of November 1844. 



R. A. P. 



Usual cost of tin in Maulmain, Rs. ) OQ - n 



ww o o/-- ik v> } 4o 5 2 per cw$. 



77-8 per 36o lbs., or Rf. ••• J ^ 



Freight to England % £ 1-10 per \ q ,^ 



ton, I 



Duty, @ 10s. 5 



Shipping charges here and in Lon- ) 8 



don, ) 



Commission in London @ £ 2k 



per cent. 



Or, ••• ... 



Assumed price in London. 



Leaves a loss per cwt. of ••• 4 9 



" The assumed rate for the ore at Maulmain, 45 rupees 

 per 365 lbs., would be I think subject to a reduction ; but 

 that for the metal, is probably the lowest average. It will 

 be observed also, that the London price of 56s. per cwt. 

 is taken at a period of great depression in the value of the 

 article which had averaged 72s. per cwt.' ; but it would 

 nevertheless appear, that to send it to England in the state 

 ^f clean ore would be by far the safest investment, " 



c (3 8 § an y m i xe d metal resembling tin? 



— as tin and sine. 

 3i>(^n tinned iron plates. 



