Our boys; what they can do and how to do it (1893)
Stoddart, William, [from old catalog] comp · New York, Hunt & Eaton; Cincinnati, Cranston & Curts · leaf 178
halffill a pipe bowl with the mixture. We arenow ready to learn something about oxygen, burning a watchHeat the mixture over the lamp. Light spring. the wax taper and from time to time hold it just within thepipe bowl. When the brilliancy of the taper increases youmay know that oxygen is going off,… … 174 OUR BOYS.
Handicraft · Amusements · Sports
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