Of microscopes, and the discoveries made thereby. \b In two volumes, vizt Vol. I. The microscope made easy: or, The nature, uses, and magnifying powers of the best kinds of microscopes described, calculated and explained. Directions how to prepare, apply, examine and preserve all sorts of objects. An account of discoveries already made by the microscope: and a variety of new experiments and observations. Vol. II. Employment for the miscroscope: or, An examination of salts and saline substances; shewing their amazing configurations and crystals, as formed under the observer's eye. Directions how to be always provided with these most curious objects. Considerations on gems, poisons, the vegetation of metals, the resuscitation of plants, the formation of amber, corals, &c. with discoveries of many strange animalcules. A new micrometer described, and instructions for printing off any medal or coin. Illustrated with many copper plates. By Henry Baker, Fellow of the Royal Society, and member of the Society of Antiquaries of London