The elements of natural philosophy : copiously illustrated by familiar experiments and containing descriptions of instruments, with directions for using : designed for the use of schools and academies (1856)
Sprague, A. W. (Alfred White), 1821-1891 · Boston : Phillips, Sampson & Company · leaf 353
ws with this instrument will be remembered by those who listened to theinstructive lectures delivered by this distinguished philosopher, a few yearssince, in this and other cities of our country ; contrasting as they did with thetoo many mere tawdry shows with this instrument, given by those who… … in a tin box or case, and may be fixed in its proper position ;this lamp is supplied with air through a circular opening in thebottom of the lantern, at 0. C is a conical glass chimney, forgiving steadiness to the flame, and for conducting the heatedgas out through the opening, W, which is bent so…
Physics
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