4 Of colours vide pag 694 Of colours vide pag 696 Of colours vide pag 696 Of colours vide pag 69Of colours vide pag 69The Newton Project Knowledge Graph2020-10-08Journal6 Of colours vide pag 694 Of colours vide pag 6928 Yet either a Lixivious liquor, or urinous salt being poured on a solution of blew vitrioll in faire water makes it yellow & the precipitated corpuscles retained the yellow colour when they were falne to the bottome. 29 A just quantity of Oyle of Tartar poured into a strong solution of french verdigrease turnes it from greene to blew; a Lixivium of pot ashes turnes it to a lighter blew, & spirit of Vrin, or Harts-horne make other blews. 30 {One graine} of Cochineel dissolved in spirits of urin & then by degrees in faire water, imparted a discernable colour to 125000 graines of faire water. Continue reading…