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The Royal Society: Science in the Making

Correspondence Explorer

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Showing 9 letters from 1668–1673

9 letters from Regnier De Graaf; 0 letters from Henry Oldenburg

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Sends his treatise 'De virorum organis generationi inservientibus' for criticial consideration

Reference number: EL/G1/3

Defending his observations of the texture of the testicles against the objections of Timothy Clarke

Reference number: EL/G1/4
1669

Discussion about Riolan and Timothy Clarke's theories about the structure of the testicles; discussing theories on semen and the role of the 'vasa deferentia' and seminal vesicles

Reference number: EL/G1/5

Further discussion about his theories and justifications about 'vasa deferentia' and seminal vesicles Figure in text

Reference number: EL/G1/6
1670

Observations of the structure of testes - seminal vessels and 'vasa deferentia' - and wishes to close the dispute with Timothy Clarke; approves of Edmund King's experiments on testes Figures inserted in text

Reference number: EL/G1/7
1671

States that he has sent his published treatise on pancreatic juice; states that the debate concerning the motion of semen is resolved by the figure he has sent (not with this letter)

Reference number: EL/G1/8
1672

States that he sends a copy of his treatise 'De mulierum organis' which reiterates his theory about the movement of semen

Reference number: EL/G1/9

Sends some prepared seminal vesicles to demonstrate the motion of semen; sends another copy of 'De succo pancreatico'

Reference number: EL/G1/10
1673

Sends a copy of his 'Partium genitalium defensio'; commenting on Leeuwenhoek's microscopical observations; concerning other literary notices Read to the Royal Society on 7 May 1673

Reference number: EL/G1/11