Reference numberNLB/52/199
Alternative reference numberNLB/52 p113
TitleCopy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to J. Brookes Esquire; 17 Honiton Road, Romford, Essex
Date13 October 1915
DescriptionReply to an earlier enquiry from Brookes into the Thermophone. States that the Royal Society have no knowledge of the manufacture of the Thermophone, but that his enquiry has been passed onto M. de Lange who is better suited to help.
Access statusOpen
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    Browse the records of some of our collections, which cover all branches of science and date from the 12th century onwards. These include the published works of Fellows of the Royal Society, personal papers of eminent scientists, letters and manuscripts sent to the Society or presented at meetings, and administrative records documenting the Society's activities since our foundation in 1660.

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