A textbook on mechanical and electrical engineering (1902)
International Correspondence Schools · Scranton : International Textbook Co. · leaf 425
rue length of the parallel lines is found by projectiondrawing. The application of the rules found under theheading General Rules for Obtaining Parallel Develop-ments is then sufficient for the development of any solid;and if this application is carefully made, the student willmeet with no… … JUNE 25J893. Cop>-r:ght, 1S99, by THE CoAll right