Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 452
but they take too long toinstall. Suppose it had beennecessary to use thesesearch-lights in rescue workthe first night, what shouldwe have done then ? Andafter a moments thought headded: I wonder why it hasnever been thought neces-sary to invent a storage-battery search-light,which would always be… … THOMAS EDISON INSPECTING HIS LATEST INVENTION. As soon as time could be found to do so, hemade inquiries of various authorities, and the 270 NATURE AND SCIENCE FOR YOUNG FOLKS [Jan., ultimate result of each investigation was thesame: a reliable portable battery was badly re-quired—one that could be…
Children's literature
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