Published Eyerstok (Ovary), Letters 37, 39 (L-122, L-135)

January 1, 1684

The letters that Leeuwenhoek numbered 37 and 39 and were addressed to Christopher Wren and Francis Aston and were published in 1684 by Daniel van Gaesbeeck in Leiden. They were paginated separately so that they could be sold separately and bound as the buyer wished.