AIR GUN. THE GLYCERINE BAROMETER, | wheeler was considered, on account of slowness, unfit for The marked influence of the variations in the pressure of constructed so _ almost beside its rival side-wheeler in point of speed. The in coal mines, has led the English engineers to devise a new jexterior… … turn, is retained ment occupied by a young man suffering for a long time cerine, which is THE GLYCERINE BAROMETER AT by the trigger. from general ill health. No trap, on kitchen sink; water very pure, is ma- THE KEW OBSERVATORY. The air-condens- supply, cistern connected directly with the sewer…
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