THIS book gives in full detail the elementary courses of engineering drawing as taught to young midshipmen in the Navy of the Unite States of America. The instruction is arranged on the assumption ...

DESCRIPTIVE Geometry affords the practical means of dealing with geometry in three dimensions, in the same manner that Practical Geometry, that is to say, the intelligent use of drawing and of ...

This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...

This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...

Journal of the Washington Academy of Sciences, Vol. 31, No. 11 (November 15, 1941), pp. 441-453 (13 pages) ...