Wrote letter of 1711-12-29 (AB 291) to Anthonie Heinsius
Standard reference information The original manuscript on seven quarto pages, written and signed by Leeuwenhoek, is preserved at The Hague, Nationaal Archief, Archief Anthonie Heinsius (toeg. nr. 3.01.19, inv.no. 1613).
It was not published at the time.
Leeuwenhoek's summary Leeuwenhoek's self-publications are the source for the summaries of his 165 letters self-published and thus self-numbered letters. This letter was not among them.
Of the letters from April 4, 1702 (AB 237) through June 10, 1712 (AB 294), those letters with scientific observations, including this one, were all addressed to members of the Royal Society and almost all of them were excerpted in Philosophical Transactions .
Specimens and methods Blood, heartbeat, and pulse.
The total blood volume circulating through the body.
Calculations Calculations of the quantity of blood that is propelled by each heartbeat and pulse.
Estimations of how often the total blood volume circulates through the body each hour.
Publication history Related sources and first editions only of Leeuwenhoek's volumes of letters. For later editions see Related events under Learn more.
Notes Learn more
