it, Fig. 11. The the end of a silk thread, moistening it thoroughly with ‘Fig. 6, and be made to turn several times by the lighter gas diffusing into the porous vessel blows a breath until their perishable sails break one by one. the solution, and hanging it over the bowl of a pipe just before… … Then by touching the film within the loop, either with bubble from the film. On removing the outer jar the it, and the pipe pulled away, leaving the bubble ad- a hot wire or with a piece of blotting paper, the film hering to the ring. The pipe may be again dipped, reverse action takes place, and…
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