Inside Out Library · Explore
Scientific American, Vol. 40, No. 3 (1879) (1879)
leaf 0
es, and affected by changes of temperature; and its detergent power passing almost unhurt through a fire that will melt nickel, is much lessened by the large proportion of water it contains. —S—= S £3, S== —— _ graphite is destined to act a prominent part in the industries The latter fault is… … THE MANUFACTURE OF LEAD PENCILS. © 1879 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
More pictures from Scientific American, Vol. 40, No. 3 (1879)
More like this
