A description of the most valuable kinds of microscopes now in use: Viz. The pocket microscope, together with the new invention for fixing it on a pedestal, and giving light to objects by a speculum; the double reflection microscope; the microscope for viewing opake objects; and the solar, or camera obscura microscope. As they are made and sold by John Cuff, against Serjeant's-Inn Gate in Fleet-street. With a particular account of the use and application of the several parts of the apparatus belonging to each kind.