Society of Glass Technology · [Sheffield] · leaf 686
Fig. 163. •f-C OH … Fig. 164. consists of a glassbulb, of which oneside is so blown asto extend down-wards. The lowersurface of this pro-jection is concave,furnishing a ring-shaped base onwhich the appar-atus rests whennot in use. Twotubes for inlet andexit water aresealed into the topof the bulb, whichis designed to…
Glass
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.