be ad- record of power taken from main driving shafts. Thisis an who died recently at the comparatively early age of 51, was justed to be opened at a certain position of the hands on the ingenious combination of mechanism in-which a graduated the son of Mr. Andrew Thomson, a surgeon in the… … casing for a pressure spring and the drill stock, which plate at the bottom of the first conveyer by boards secured to is also provided with a tubular guide on the same diametri- them by joint bolts or by rods running the whole length of cal line with the casing, and for the purpose of guiding the…
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