The method of using the apparatus for exhibiting vibrations caused by heat, 1829. A description of a chemical vapour lamp furnace, 1834. And, an account of an experiment with chlorine gas, 1833 / by Arthur Trevelyan.

Date:
1850
Catalogue details

Licence: Public Domain Mark

Credit: The method of using the apparatus for exhibiting vibrations caused by heat, 1829. A description of a chemical vapour lamp furnace, 1834. And, an account of an experiment with chlorine gas, 1833 / by Arthur Trevelyan. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

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    3. End view of bar, showing Its mode of resting over an unequal notch in the ring D., being the most successful method of producing the sounds. 4 4. The unequal notch over which the vibratory bai* rests. 5. Lead block, rounded at the part on which the bar rests, as seen at 6, being the best method of exhibiting the visible vibrations, unaccom- panied by sounds. The arc of vibration is much increased by the brass balancing bar E. having a solid brass knob at each end, and flattened in the centre of the rod, to enable it to rest firmly on the vibratory bar. 7.7,7.7. A small apparatus of a convenient form for the experimen- taHst, but requiring nicety in its use; is not suited for the lecture-room. The wedges F.F.F. (of any metals) slip into gi-ooves—the one kind into