London, Wellcome Institute MS. 2865. 87 pages + 87 pages. 235x180mm. Mid 18th Century. Hollandus, Johann Isaac. Traité d'ouvrages minéraux, ou de la Pierre des Philosophes. [Illustrated with frontispiece of symbolic figure of man rescuing a child from drowning in a lake.] [This work was published in German in 1600, no record of a French translation has been traced.]