which operates the blow-off ing faintly visible near the edge of the opening at the the table outside the box. valve, B, of a pipe communicating with a blower serv- Now all the experiments can be repeated with the back, and fading away to dead black inside the camera. most brilliant results. With… … Remove the white paper and THE KEMP GAS-GENERATING APPARATUS. which steam is supplied by the put the red tinter in place. Put pipe, J. The air conveyed by a red paper or red flower in the the pipe, L, and the naphtha fed by the pipe, H, and blue paper appears a wonderful purple, green is a camera.…
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