AN AUTOMATIC WATER TRAP FOR CISTERNS. PICKERING'S WATER TRAP FOR CISTERNS. AN IMPROVED FIRE ESCAPE. BLOCK'S FIRE ESCAPE. AN IMPROVED SCREW TAP. Deer in New Zealand. PURDY'S LOCK-CLAMP FOR PIPES. MATHER'S EXPANSIBLE AND COLLAPSIBLE SCREW TAP. AN IMPROVED RESERVOIR FOR COOLING ALES ETC. HAWKINS' COOLER FOR ALES ETC., scientific american, 1888-09-01
AN AUTOMATIC WATER TRAP FOR CISTERNS. PICKERING'S WATER TRAP FOR CISTERNS. AN IMPROVED FIRE ESCAPE. BLOCK'S FIRE ESCAPE. AN IMPROVED SCREW TAP. Deer in New Zealand. PURDY'S LOCK-CLAMP FOR PIPES. MATHER'S EXPANSIBLE AND COLLAPSIBLE SCREW TAP. AN IMPROVED RESERVOIR FOR COOLING ALES ETC. HAWKINS' COOLER FOR ALES ETC., scientific american, 1888-09-01
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