The forty third Experiment, Of Extracting a Green Solution with fair Water out of imperfectly Calcin'd Vitriol ([327].)

The forty fourth Experiment, Of the Deepning and Diluting of ſeveral Tinctures, by the Affuſions of Liquors, and by Conical Glaſſes that contain'd them, Exemplify'd in the Tinctures of Cochineel, Braſil, Verdigreaſe, Glaſs, Litmus, of which laſt on this occaſion ſeveral pleaſant Phænomena are related (from [328] to [335].) To which are adjoyn'd certain Cautional Corollaries ([335], [336].) The Waterdrinker and ſome of his Legerdemain tricks related.([337].)

The forty fifth Experiment, Of the turning Rheniſh and White Wine into a lovely Green, with a preparation of Steel ([338], [339].) Some further Trial made about theſe Tinctures, and a Similar Experiment of Olaus Wormius ([340].)

The forty ſixth Experiment, Of the Internal Colour of Metalls exhibited by Calcination ([341], [342], [343].) Annotation the first, That ſeveral degrees of Fire may diſcloſe a differing Colour ([343].) Annotation the ſecond, That the Glaſſes of Metalls may exhibit alſo other Kinds of Colours ([344].) Annotation the third, That Minerals by ſeveral degrees of Fire may diſcloſe ſeveral Colours([345]).

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

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.