Before we can utilize this agency for lighting purposes, we must make a machine which will produce a vacuum; we must make glass; we must learn to carbonize threads; and the art of blowing glass would be a necessary accomplishment."
"The Wonder Island Boys: Exploring the Island"
Roger Thompson Finlay
He began to carbonize everything in nature that he could lay hands on.
"Edison, His Life and Inventions"
Frank Lewis Dyer and Thomas Commerford Martin
He examined this, and then gave it to one of his assistants, telling him to cut it up and get out of it all the filaments he could, carbonize them, put them into lamps, and try them.
"Edison, His Life and Inventions"
Frank Lewis Dyer and Thomas Commerford Martin