Abhandlung des Daseyns der Gespenster

I recently referred to Mayer's Abhandlung des Daseyns der Gespenster, nebst einem Anhange vom Vampyrismus published in Augsburg in 1768, because it contains a German translation of van Swieten's commentaries on vampirism and Magia Posthuma. Interestingly, two reviews of this book can be found online in the digital version of Allgemeine deutsche Bibliotek as part of the online Schriften der Erklärung at the web site of the
Universitätsbibliothek Bielefeld. The reviews are from 1770 and 1771 and have very little to say about van Swieten's commentaries, but are worth reading for their general thoughts on the subjects of "Gespenster".