Henry Oldenburg wrote to Leeuwenhoek about Hooke's and Grew's reactions to recent observations

May 4, 1676

Responding to Leeuwenhoek's recent inquiries, Oldenburg told Leeuwenhoek that his observations about hair agreed with Robert Hooke's. Also, he had passed along to Nehemiah Grew Leeuwenhoek's remarks about Grew and the vessels in wood. Grew's observations differed, so Oldenburg gave him a chance to respond. In the next issue of Philosophical Transactions no. 127 with a publication date of 1676-07-18, Oldenburg added four pages (pp. 656-660) from Grew directly after the excerpt from Leeuwenhoek's letter that he translated himself.