J. K. Smit & Sons, Toronto, 1956, Second Edition.  Hard cover, 655 pages including Bibliography, Glossary, and Index.  Red cloth with faded gilt lettering on front and spine; prior owner’s name stamped in gilt at lower front.  Some edge, corner and spine wear, small tears to cloth at upper spine edge; binding sound.  Interior clean and unmarked; faded spots near gutter margin of first few pages; occasional age spotting.  Author’s book plate affixed to front end paper, with his inked inscription above.  Fold-outs in pocket affixed to rear paste-down.  Illustrated throughout with black & white photos and drawings, plus tables and charts.  ‘The main purposes of the handbook remain:  a guide to the engineer, the geologist, the student, the mine manager and the investor who wishes to understand the relationship of diamond drilling to exploration and mine development. … In addition, this handbook may help the drilling contractor and the driller by collecting and presenting in convenient form data and standards pertaining to his equipment.’ (from Foreword)