The boy's own book of indoor games and recreations : a popular encyclopædia for boys (1890)
Stables, Gordon, 1840-1910, Hutchison, George Andrew, 1841-1913 · Philadelphia : J.B. Lippincott · leaf 231
g moved towards or away from the point of the jet. This adjustment is necessaryto rectify any slight difterence in the diameter of the lime cylinders, for, in order toobtain the full amount of light, the face of the lime cylinder requires to be broughtas close to the point of the jet as it can be… … THE MAGIC LANTERN, AND ALL ABOUT IT 227 action of the flame. The heating power of the flame of the oxyhydrogen gases isso intense that a cavity is soon burnt in the face of the lime cyHnder, and if thispart of the cylinder were to be allowed to continue opposite to the jet, the hghtwould be greatly…
Games · Amusements
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