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4. On two new Laboratory Apparatus

Published online by Cambridge University Press:  15 September 2014

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Extract

The object of this communication is to submit to the notice of the Society two little inventions of mine, which, whatever may be the degree of originality which they can claim, will, I venture to hope, prove useful additions to the catalogue of chemical-laboratory appliances. The one is a new form of the precision balance, which pretends to execute exact weighings with a hitherto unattained degree of rapidity; the other is a contrivance for maintaining a constant pressure in a supply of gas, and thus making it possible, with comparative facility, to keep, say an air-bath, for any length of time, at a constant temperature.

Type
Proceedings 1875-76
Copyright
Copyright © Royal Society of Edinburgh 1878

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References

page 147 note * For fuller explanations, see my article “Balance” in the “Encyclopædia Britannica.”