fting the belts. and start- adapting the.camera to the heliograph, but applications of a ings. ing or stopping. Curved blades can be placed’ in‘ the verti- An improved lifting-jack, patented by Messrs. Joseph S. like nature are practiced every day by scientific men. The cal slide if desired, and… … Mr. John D. Graves, of ficulty is at once obviated by bringing into play.a second Wichita, Kan., has invented : ; mirror, which reflects the an improved windmill, in rays on to the first. But if the distance to be signaled is lower blade may readily be removed to receive-a curved bed which the…
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