"Lantern slide" Quotes from Famous Books
... difficulties encountered by them in so doing may be realized from the fact that one brief chapter, for example,—that on ore milling—covers nine years of most intense application and activity on the part of the inventor. It is something like exhibiting the geological eras of the earth in an outline lantern slide, to reduce an elaborate series of strenuous experiments and a vast variety of ingenious apparatus to the space of a few ... — Edison, His Life and Inventions • Frank Lewis Dyer and Thomas Commerford Martin |