"In Amsterdam, Deichsel finishes discussing religion in Europe with Jean Le Clerc. On June 28, he calls at Pasquier Quesnel's who lives with another Frenchman called Du Bois, but he is informed that he cannot visit him. He mentions the price of his New Testament. He then visits Frederik Ruysch and explains that he is currently preparing a new book. He describes his experiments and the curiosities he finds in his house."