34 books
Supplement to Spons Dictionary of Engineering, Civil, Mechanical, Military, and Naval; v. 2
Workshop Receipts, for Manufacturers and Scientific Amateurs, Volume 3 - Primary Source Edition
Supplement to Spons' Dictionary of Engineering Volume 3; Civil, Mechanical, Military, and Naval
Supplement to Spons' Dictionary of Engineering Volume 2; Civil, Mechanical, Military, and Naval