by Pierce, George W.
Harvard University. Softcover. 8vo, 47 pages, 3 leaves of plates, illustrated, tables, graphs; VG; red cover with black print, front cover has pencil notation at top right with small with small white label, owner stamp at top edge, slight tear at bottom spine staple; back cover has blue library stamp at top edge, slight bump to upper left corner; title page has slight spotting, otherwise clean interior; "Reprinted from Proceedings of the American Academy of Arts and Sciences, April, 1928, Vol. 63, No. 1"; "Publications from the Harvard Engineering School, 1927-28, No. 22." 1293163. Rockville Non-Retail Listings. (Inventory #: 1293163)