o gain the full benefit its pr incipal feature isan improved construction of the pol- the atmosphere. Arriving at the house, they placed the crys- tals on a table and waited patiently to see if it would melt or of every particle of heat. The particular enlargement above ishing faces of the rotary… … Fig. 1 isa side elevation showing, on the right hand, the It will be seen from Fig. 1, which represents the machine er the lower portion of the steam drum, this central cham-- outside of the casing, and on the left, the same broken away, with part of the cover and one of the stones broken away to…
Internet Archive · Public domain (published before 1931). Free to use for anything.
