Hubert, Philip Gengembre, 1852-1925 · New York, C. Scribner's sons · leaf 275
y in the lamps themselves,for new lamps burned well. Then began themost exciting and most exhaustive series of ex-periments ever undertaken by an American phys- 250 INVENTORS icist. For five clays Edison remained day andnight at the laboratory, sleeping only when hisassistants took his place at… … Edisons Menlo Park Electric Locomotive (I 880). eyes grew weak studying the brilliant glow ofthe carbon filament. At the end of the five dayshe took to his bed, worn out with excitement andsick with disappointment. During the last twodays and nisrhts he ate nothing. He could not J O O sleep, for…
Inventors
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