Theory and Operation of Direct-Current Machinery
New York: McGraw-Hill, 1917. First Edition. 8vo. Black cloth with gilt lettering on spine. Line illustrations and photos throughout. 285 pp.
Covers a bit scuffed. Liquid stain on left edge of front cover which is visible to front free endpaper. Tight and clean.
This is a scarce first edition academic text dealing with the principles of electromagnetism and operation of dynamoes and heavy machinery. Item #1452
See all items in Antique (Pre-1920s), Reference & How-To, Science, Tech & Math
See all items by Cyril M. JANSKY