The school of arts [electronic resource] : or, an introduction to useful knowledge, being a compilation of real experiments and improvements, in several pleasing branches of science, ON The Following Subjects, Viz. Mechanics, Electricity, Optics, Construction of Optical Instruments, &c. Grinding and Polishing Optic Glasses. Clock and watch-making and Astronomy. The Miscellaneous Articles contain the most approved Art of Drawing, Etching, Engraving, Crayon painting, Gilding on glass, pots, &c. Silvering looking glasses, &c. Lackering, Varnishing, Soldering, Casting in plaster &c. Cements, Glues, staining wood, and A composition for ornaments, &c. &c. &c. By John Imison.