STAHL, Georg Ernst. Experimenta, Observationes, Animadversiones, CCC Numero Chymicae et Physicae. 1731.

First edition.
"An important work in 301 sections in wihch Stahl comments critically on a wide variety of chemical and physical phenomena and experiments. There is a long discussion on phlogiston and its supposed properties (section 38, pp.55-64)... This work, published just three years before he died, is interresting because it summarizes Stahl's theories toward the end of his life" (Neville).