image MS_131_0156
Image number: RS.16480
Credit: ©The Royal Society

Instrument for experimenting on acidic spirits


21 June 1699


Unknown, Artist

Object type

Archive reference number

Manuscript page number




height (paper): 83mm
width (paper): 110mm


Content object


A glass bottle designed by Wilhelm Homberg (1652-1715) of the Royal Academy of Sciences in Paris to experiment on acidic spirits, which was reported by Etienne François Geoffroy to the Royal Society at the meeting on 21 June 1699. It was published in Philosophical Transactions of the Royal Society, vol. 22, no. 262 (1700).


At the top: The aerometer of Mr Homberg. Fig. 1.
Transcribed by the Making Visible project

Object history

21 June 1699, 'A Letter from Monsr Geoffroy, from Paris was read, relating ye Effects of Hedera Terrestris &. about volatile saltes; with a Table to know by the Araometer the Exact measure of salts' (JBO/10/132).

E. F. Geoffroy, 'Concerning the Exact Quantity of Acid Salts Contained in Acid Spirits', Phil. Trans., vol. 22, no. 262 (1700), pp. 530-34,

Related Fellows

Etienne Francois Geoffroy (1672-1731, French), Physician

Associated place

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