Manufacture of Glass. 5S9 



Habitat. Kasyah mountains. 



This species differs from Pimelodus Cyclopiam in the caudal being 

 entire and the anal long, and but for these two characters, we should 

 have referred it to Mr. Swainson's American genus, Cyclopium. 



Correspondence and Papers relative to the manufacture of 

 Glass and Earthen-wares and Fire bricks in India : receiv- 

 ed from the Government. 



From Mr. J. C. Pvle of Furrackabad, to T. C. Hunter Esq. of the 

 same place, dated 28th December, 1840. 



1 . In compliance with your request, I have now the pleasure of send- 

 ing a few common green glass bottles made by me at Futtehgurh. 



2. Experiments to ascertain the point as to the possibility of mak- 

 ing green glass bottles here with ingredients bond fide the produce 

 of the country, were commenced upon by me on the 5th October last, 

 and by persevering in them, I have been at last able to produce the 

 bottles above alluded to, which notwithstanding their imperfections, 

 decide the practicability of the manufacture. 



3. The bottles forwarded are of two kinds : one of a dark, the 

 other of a light green colour. In the dark green bottles, the principal 

 ingredient is Ganges' sand, procured from the river here below the 

 Fort. In the light green bottles, the principal ingredient is an earth 

 procured from the other side of the Jumna. The flux is obtained 

 from " raye," of which there is an extensive plain on the other side 

 of the city of Furruckabad. The pots or crucibles in which the 

 ingredients to form the glass were melted, were made of a very refrac- 

 tory clay procured from the other side of the Jumna ; the furnace 

 was built of fire bricks made of the same refractory clay ; the fuel 

 used was wood. 



4. Upon comparing the bottles I have sent, with the English mus- 

 ter bottle you gave me, the following imperfections are apparent : — 



1st. My bottles contain a number of air specks or bubbles in the 

 body of the ware. 



2d. The impression of the East India Company's mark is very 

 indistinct. 



