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How to Collect and Observe Insects How to Frame with Passe Partout How to Make a Twin-Elliptic Harmonograph How to Make Good Pictures: The Kodak manual for amateur photographers How to make Lantern Slides "How to Photograph Microscopic Objects" : 2 entries How to Recognize Meteorites How to see with the Microscope: Being useful hints connected with the selection and use of the instrument; also some discussion of the claims and capacity of the modern high-angled objectives, as compared with those of medium aperture; with instructions a How to Use the Chinese Abacus : 2 entries How to use the microscope How to Use the Microscope: A Guide for the Novice How to Work with the Microscope : 4 entries How to Work with the Microscope: A Course of Lectures on Microscopical Manipulation, and the Practical Application of the Microscope to Different Branches of Investigation. Delivered, During the Winter Session, 1856-57 How to Work with the Spectroscope. A Manual of Practical Manipulation with Spectroscopes of all Kinds, including Direct-Vision Spectroscopes Chemical Spectroscopes Solar Spectroscopes Star Spectroscopes Automatic Spectroscopes Micro Spectroscopes Screen S How to Work with the Spectroscope: A Handbook giving practical elementary instructions in the use of all kinds of Spectroscopes Howard Florey: Penicillin and After Howard Florey: The Making of a Great Scientist "Hoyle on Stonehenge: Some Comments" "Hoyle talks of an 'Einstein' in 1850 BC" HP-25 Applications Programs and HP-25 Owner's Handbook
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