kept so for some time, so as to stretch the rubber well. flame, so as to lower the flame without extinguishing Our illustration shows one large bolt and three smaller This is to enable it to fill at low pressure. The glass it. The degree to which the flame is to be enlarged or ones arranged in… … out the air before it. This would escape thinks the Edison photophone possesses from the mouth of the funnel. But the bal- such vast possibilities and its achievement has awakened an enthusiasm which has loon which has been placed there intercepts its escape. The air enters and rapidly inflates it.…
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