This 2 volume set us quite nice--entire proceedings from NELA at their NYC conference May 1911. Lots of notes, comments and interesting articles including transmission; insulator brackets, article by RD Mershon and others...lots of neat ads and pictures and each book is around 1200 pages. Too much stuff to list. Also adding NELA 38th convention SF 1915 with some more material (only some 500 pages) and a book on Pole & Tower lines (1916) again with more classic pictures and information on building. The 2 NELA set 1911 is quite interesting and well worth reading (it alone cost me $150). Total all $100 with postage as would like to sell as lot.