ty. The hod is in the usual form, the discharging surface being perforated either with transverse slits arranged diagonally to retard the escape of the debris as may be desired. In front is a channel sible, by opening which the debris may be drawn or swept formed of a bent sheet of iron and having… … reintroduced with modifications, and having achieved consid- tained their readers with descriptions of the inventor of the that it has great advantages over the ordinary hod and will erable success, he thus explains his process :—1st. Acids em- Prussian needle gun and of the arm itself, and it…
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