Society of Glass Technology · [Sheffield] · leaf 270
Fig. 2. Fig. 3. … in line. The strip is held in position by means of a detachablepaper clip. If the meniscus so shaded is viewed against a whitebackground, the bottom of the meniscus appears quite black, andits outline is very sharply defined against the white background. Jets and Stopcocks of Burettes. In order…
Glass
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.