Inductive elementary physical science with inexpensive apparatus, and without laboratory equipment (1897)
Bailey, Frederick H. (Frederick Harold), 1865- · Boston, D. C. Heath & Co. · leaf 122
forces the air out of the bottle whenthe lower valve is open, and what opens it ? A mercury air-pump may be constructed Avith parts ofthree pupils sets of apparatus. With this pump, nearly/ all AUXILIARY WOBK. 87 the air may be taken from a bottle. The apparatus itselfis very cheap; but its use… … and a glass funnel, they may be used instead of Apparatusa and its supporting bloclis. A screw-clamp for regulatingthe flow of mercury is better than the clothespin. In placeof Apparatus b, one may use a small inverted bottle withthe bottom cut off. A single tube (represented as broken)reaches from…
Physics
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