Experiment _the forty seventh, Of the Internal Colours of Metalls disclos'd by their Dissolutions in several_ Menstruums (from 345 to 350.) Annotation _the first, The Authors Apology for Recording some already known_ Experiments, _without mentioning their Authors_ (from 350 to 352.) Annotation _the second, That some Minerals also by Dissolutions in_ Menstruums _may exhibit divers Colours_. Annotation _the third, That Metalls disclose other Colours by Precipitations, instanc'd in_ Mercury (from 353 to 355.) _The forty eighth_ Experiment, _Of Tinging Glass Blew with Leaf Silver, and with Calcin'd Copper, and White with Putty_ (from 355 to 358.) Annotation _the first, That this white Glass is the Basis of Ammels_ (358.) Annotion _the second, That Colour'd Glasses may be Compounded like Colour'd Liquors in Dying Fats_ (359.) Annotation _the third, Of Tinging Glass with Minerel Substances, and of trying what Metalls they contain by this means_ (from 360 to 362.) Annotation _the fourth, That Metalls may be Ting'd by Mineralls_ (362, 363.) Annotation _the fifth, Of making several Kinds of Amauses or Counterfeit Stones_ (from 363 to 365.) Annotation _the sixth, Of the Scarlet Dye, of the Stains of dissolv'd Gold and Silver_ (366, 367) _Of the Greenness of Salt Beef, and Redness of Neats Tongues from Salts; of Gilding Silver with Bathe Water_ (368, 369.) _And Tinging the Nails and Skin with_ Alcanna (369) _The forty ninth_ Experiment, _Of making Lakes_ (369.) _A particular example in Turmerick_ (370, 371.) Annotation _the first, That in Precipitations wherein Allum is a Coefficient, a great part of them may consist of the Stony particles of that Compound Body_ (from 372 to 375.) Annotation _the second, That Lakes may be made of other Substances, as Madder, Rue,_ &c. _but that Alcalizate Salts do not Always Extract the same Colour of which the Vegetable appears_ (from 376 to 378.) Annotation _the third, That the_ Experiments _related may Hint divers others_ (378) Annotation _the fourth, That Alum is usefull for the preparing other than Vegetable Pigments_ (379.) _The fiftieth_ Experiment, _Of the Similar effects of_ Saccarum Saturni _and_ Alkalies, _of Precipitating with Oyl of_ Vitriol _out of_ Aqua-fortis, _and Spirit of_ Vinegar; _and of divers Varyings of the Colours, with these Compounded_ (from 380 to 384.) _Another very pretty_ Experiment, _with a Solution of_ Minium (384, 385.) _That these_ Experiments _Skilfully digested may hint divers matters about Colours_ (386.) _The Authors Apologetick conclusion, in which is Cursorily hinted the Bow or Scarlet Dye_ (387.) _The Authors Letter to Sir_ Robert Moray, _concerning his Observations on the Shining Diamond_ (391. &c.) _And the Observations themselves_. * * * * * Errata.