His first work, published anonymously in 1806, was entitled Sechs Dialoge fiber Krieg und Handel.
Walch, was published anonymously by his son C. W.
In support of this view he wrote a letter Concerning Enthusiasm to Lord Somers, dated September 1707, which was published anonymously in the following year, and provoked several replies.
In addition to other medical works he published anonymously Conjectures sur les memoires originaux dont it parait que Moyse s'est servi pour composer le livre de la Genese, (1753), in which he pointed out that two main sources can be traced in the book of Genesis; and two dissertations on the immateriality and immortality of the soul,.
Then in 1788 she appeared as an author under her own name (Sophie had been already published, but anonymously) with some Lettres sur J.