A guide for a hobby, this is an orderly blueprint for the use and enjoyment of a precision instrument, from beginning to expert management. A capsule history of the microscope, pointers for buying one, how it works -- this is the preliminary information that leads to the viewing of specimens -- of anything and everything, starting with organisms in waters, with the blood, and to bacteria, fungus, algae, with the basic processes for preparing all the material and the slides for examination. How to make permanent slides, to study body cells, metals; how to work with polarized light and how to make photomicrographs -- this should satisfy anyone wanting to pursue that which is hidden from the normal eye.