330 On the A Hoys bf Steel. 



Table of Specific Gravities of Allmjs, Sec, mentioned in the! 

 preceding Paper. 



Iron, luihammered, . . . • 7.847 



Wootz, unhammered, (Bombay) 7.665 



Wootz, tilted, (Bombay) 7.6707 



Wootz, in cake, (Bengal) 7.730 



Wootz, fused and hammered, (Bengal) .•"... 7.787 



Meteoric iron, hammered, 7.p65 



Iron, and 3 percent, nickel, ........ 7.804 



Iron, and 10 per cent, nickel, 7.849 



Steel, and 10 per cent, platinum, (mirror) 8.100 



Steel, and 10 per cent, nickel, (mirror) • 7.684 



Steel, and 1 per cent, gold, hammered, 7.870 



Steel, and 2 per cent, silver, hammered, 7.808 



Steel, and 1.5 per cent, platinum, hammered, . . . 7.732 

 Steel, and 1.5 per cent, rhodium, hammered, . . . 7.795 



Steel, and 3 per cent, nickel, hammered, 7.750 



Platinum 50, and steel 50, unhammered*, .... 9-862 

 Platinum £)0, and steel 20, unhammeredf, .... 15.88 

 Platinum, hammered and rolled, 21.25 



Art. XI. On the Attempts recently inadeto introduce the 

 Shawl Goat into Britain. By J. Mac CuUoch, M.D., 

 F.R.S., i>-f. In a Letter to the Editor. 



Dear Sir, 

 As the attempts to introduce the Thibet goat into this country 

 are not generally known, your readers may perhaps be inte- 

 rested by the following brief account of these trials, and of 

 the results which have attended them. It may serve the further 

 purpose, of inducing those, who have the means of procuring 

 this animal, and estates fitted for its habitation, to contribute 



' The calculated mean specific gravity of this alloy is 11.2723 assuming 

 the specific gravity of platinum and steel, as expressed in this Table. 

 + The calculated mean specific gravity of this alloy is 10.0766. 



