This catalog explores some of the history of mechanical transportation in the form of bicycles, tricycles and motorcycles. United States National Museum catalog numbers are included in the descriptions where available.

Despite the increasing use of computers, the basic need for mathematical tables continues. Tables serve a vital role in preliminary surveys of problems before programming for machine operation, and they are indispensable to thousands of engineers and scientists without access to machines. Because of automatic computers, however, and because of recent scientific advances, a greater variety of functions and a higher accuracy of tabulation than have...

This field study took place in Isle Royale National Park, Canada began in June 1958. There, Meech met Donald E. Murray of Mountain Iron, Minnesota, who served as one of the aircraft pilots for the project. During the 3-year project, the team achieved great things in the aerial observation of wolves and their hunting with a grant from the National Science Foundation.