Antonio Magliabechi wrote to Leeuwenhoek about a packet of books that had arrived
This is another lost letter from Magliabechi to Leeuwenhoek.
Modena: The editors of vol. 12 of Alle de Brieven / Collected Letters (Letter 173 of 28 August 1696, p. 49, n. 8) speculate that Leeuwenhoek is referring to pages from the Giornale de' Letterati, which was printed in Modena.
On 28 August 1696, Leeuwenhoek wrote to Magliabechi,
A few days ago I received Your very kind and welcome Letter of the 8th of July and also the pages printed at Modena; through this generous communication you will always find me indebted and most grateful to Your Illustrious Name. From this later letter of Yours I learned, inter alia, that you had already notified me before in a letter that the said packet of books, sent by me to Leghorn to the Most Excellent Gentleman, had already been received by You.