QH1 .R861 v.23
Philosophical transactions of the Royal Society of London. I. Two letters from a gentleman in the country, relating to Mr. Leuwenhoek's letter in transaction, No. 282. Communicated by Mr. C. QH1 .R861 v.23
Philosophical transactions of the Royal Society of London. I. Two letters from a gentleman in the country, relating to Mr. Leuwenhoek's letter in transaction, No. 282. Communicated by Mr. C. QH1 .R861 v.23