Fig. 2 {left)—The viodified pear still head oricjinally builtinto the apparatiis of Fig. 1. Fig. 3 (right)—Sydney Youngsevaporator still head as modified by the author. The con-densates seal the small drain holes through which they passand force the vapors to take the paths shown by the arrows The…
Automobiles · Aeronautics
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