Chemistry, 405 
ditioii of of turpentine to alcohol, gives this fluid tho 
property of burning with a highly luminous flame, and that 
there is a certain point in the proportions, when the mixture 
burns without smoke, like a gas light. Silliman’s American 
Journal of Science,^ voL ii. p. 17S. 
17. Imitations of Meteoric Iron. — In order to imitate the 
Siberian meteoric iron, Mr Stodart and Mr Faraday fused 
some horse shoe-nails with 10 per cent, of nickel. The metals 
were found perfectly combined, and when polished, it had a 
yellow tinge. It was less rusted in a moist atmosphere than 
pure iron ; but what was very singular, the same quantity of 
nickel, when alloyed ivith steely accelerated its rusting instead of 
preventing it. Journ. of Science^ N° 18. p. S25. 
18. Method of making Wootz. — The following method of 
making wootz is given in the paper just quoted. Pure steel in 
small pieces, or good iron mixed with charcoal powder, were 
heated intensely for a long time, and formed highly crystalline 
carburets, composed of 94.86 iron, and 5.64 carbon. This be- 
ing broken, and rubbed to powder in a mortar, was mixed with 
pure alumine, and the whole intensely heated in a close crucible 
for a considerable time. The result was a brittle alloy of a 
white colour, and close granular texture, consisting of 6.4 per 
cent, alumine, and a portion of carbon. When 700 grains of 
good steel, and 40 of the alumine alloy, were fused together^ 
they yielded a good malleable button, which being forged into a 
bar, and polished, gave, by the application of diluted sulphuric 
acid, the beautiful damask which is peculiar to wootz; and which 
wootz retains even after repeated fusions. A second specimen 
obtained from 500 grains of the same steel, and 67 of the alu- 
mine alloy, possessed all the appreciable characters of the best 
Bombay wootz. Journ cf' Science,, No. 18. p. 8^0. 
19. Developement of Heat hy freezing. — H. T. de ia Beche, 
Esq. has published in the Bibliotheque Univei'selle, for Janu- 
ary 1820, p. 6. an ingenious method of exhibiting the heat 
which is developed by water during congelation. Having pla- 
ced two parts of olive oil above one of water, in a glass phial, he 
exposed it to a temperature of 11® of Fahrenheit. In a short 
time the temperature of the water descended below 82®, but re- 
