The twenty ninth Experiment, of the differing Effects of theſe Salts on Ripe and Unripe Juices, inſtanced in Black-berries, and the Juices of Roſes (from [267] to [270].) Two reaſons, why the Author added this twenty ninth Experiment, the laſt of which is confirm'd by an Inſtance of Mr. Parkinſon, conſonant to the Confeſſion of the Makers of ſuch Colours ([272].)
The thirtieth Experiment, of ſeveral changes in Colours by Digeſtion, exemplify'd by an Amalgam of
and
and by Spirit of Harts-horn. And (to ſuch as believe it) by the changes of the Elixir.
The thirty firſt Experiment, ſhewing that moſt Tinctures drawn by Digeſtion Incline to a Red, inſtanc'd in Jalap, Guaicum, Amber, Benzoin, Sulphur, Antimony, &c. ([276], [277].)
The thirty ſecond Experiment, That ſome Reds with Diluting turn Yellow, others not, exemplify'd by the Tincture of Cochineel, and by Balſam of Sulphur, Tinctures of Amber, &c. ([277], [278], [279].)
The thirty third Experiment, of a Red Tincture of Saccarum
