fense be created by the escape of noxious face between its two sides, and therefore closely engage and surround whatever obstruction may be passing through Such an efficient direct-acting pump, an airtight tank, and Soil, as a means of removal, has been largely adopted in it at the time of its… … and of whatever ry. Strainers for ex- length, will pass cluding every thing from the pumps except the more fluid portions have been freely through the valves without interfering with their inent features of the system of the “ Odorless Excavating action. This capacity for passing obstructions…
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