being used as the illuminating me- dium instead of the usual filament. Several of Fifth—To exhibit the electrical phenomena at these lamps are shown in the half-tone and line engravings which we publish. These lamps were all experimented with by Mr. Hewitt, and the sixth.—To exhibit electric vapor… … voltage. Wars Canale’ Watts rer Per We understand Coca _[¢96 770 9.90 | 100, 90 630 | 078 1} -4 we IK | , Sees 60 JES | 599 | O63 i oon | i “yas | 635 ase | iz Lengih 54 inches | | | Diameter te inches — ae 1/65. 420 | 039 Length 32/4 ynches| | | | Diameter Vy paches i i" H | 8 Fig. 11.
Internet Archive · Public domain (published before 1931). Free to use for anything.
