Srientific American. {May 7, 1887. 204 … The announcement has recently been made that a THE JULIEN BATTERY. SPRING CONNECTIONS ON CHARGING BENCH. contract for the delivery of 8,000,000 lb. of copper at known to abandon their ordinary pursuits, and take A relay or double set of batteries are provided for ten cents a pound, between the…
Internet Archive · Public domain (published before 1931). Free to use for anything.
