and Observations on Woot%, 325 
No. 14. Another parcel of ditto - - 7. 570 
No. 15. Piece of same bar hammered, but not hard- 
ened by quenching — - ^ - 7.693 
No. 16. Piece of steel which had been often heated 
and cooled gradually - - - -7.308 
No. 17. Huntsman's steel hammered - 7.916 
No. 18. Ditto, another specimen - - 7.826 
No. 19. Ditto, another specimen - - 7.830 
No. 20. Ditto quenched when white hot - 7.77 1 
No. 21. Ditto, another specimen so quenched 7.765 
No. 22. Piece of a file quenched while white hot to 
produce the appearance called, open grain - - 7.352 
No. 23. Another specimen of ditto - 7.405 
No. 24. Piece of same file, but not so quenched 7.460 
No. 25. Another specimen of ditto - 7-58 5 
No. 2 6. Piece of very hard steel -r. - 7.260 
No. 27. Hammered common steel - •- 7-794 
No. 28. Another specimen of ditto, and hardened by 
quenching - - _ 7.676 
No. 29. Softest and toughest hammered iron ; from 
Parkes, an iron merchant - ^ 7.716 
No. 30. Another specimen of ditto - 7.700 
No. 31. Another parcel of ditto - - 7.780 
No. 32. Another specimen of ditto - rr 7.78 7 
No. 33. Common hammered iron - - 7.60$ 
No. 34. Another specimen of ditto - 7,450 
No. 35. Cast or brittle iron re-melted * - 7.012 
• Bergman states the specific gravities of steel and iron as follows : l, steel 7,643. 
— 2, Ditto 7,775. — 3, Ditto 7,727. — 4, Ditto 7,784. — 5, Ditto indurated 7,6 93.—* 
6, Wrought iron 7,798.-— 7, Ditto 7,829. 
MDCCXCV. U U 
