Essays on the microscope : containing a practical description of the most improved microscopes; a general history of insects, their transformations, peculiar habits, and œconomy : an account of the various species, and singular properties, of the hydræ and vorticellæ: a description of three hundred and eighty-three animalcula : with a concise catalogue of interesting objects: a view of the organization of timber, and the configuration of salts, when under the microscope / |c by the late George Adams