Inside Out Library · Explore
Scientific American, Vol. 40, No. 1 (1879) (1879)
leaf 4
he base is hollow, and contains an Water till the frozen part is pliable, avoiding all artificial electro-magnetic apparatus for starting the light. At first | heat; then apply a salve made of equal parts of hog’s lard the carbon points are in contact, but when the current is put ‘and gunpowder,… … ity of zinc oxide increases as the temperature and concen- tration increase. Fig. 3—MODIFIED FORM OF RAPIEFF LAMP. © 1879 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
More pictures from Scientific American, Vol. 40, No. 1 (1879)
More like this
