Wrote Letter L-583 of 1723-03-19 to the members of the Royal Society about blood, now lost

March 19, 1723
Standard reference information
Collected Letters volume: 

This letter is known only by reference in Leeuwenhoek’s replies.

Leeuwenhoek wrote a letter to the Royal Society about blood, translated into Latin, that accompanied a letter in Latin to James Jurin that was published in Philosophical Transactions.

Letter L-584 of 19 March 1723 to James Jurin

On this occasion, then, I send to you that observation of blood that I made in the year 1721, and which from that time onwards I had ready for sending. I merely ordered this, in accordance with your request, to be translated into Latin.

Letter L-585 of 31 May 1723 to the Royal Society:

I trust that the letter that I recently wrote to you, that is, on the 19th of March 1723, has come to your hands. I hope the same with regard to another letter, addressed to Mr. Jurin, secretary of your Society, which I had enclosed with yours.

The letter to Royal Society secretary and Philosophical Transactions editor James Jurin is Letter L-584 of 19 March 1723, in this volume. There is no record in the Royal Society archives of a letter to the Royal Society of the same date.