Written with the co-operation of the Grumman Aircraft Engineering Co. Each section separately paged. Pages [153]-[160] blank for "Memoranda." [160] pages including illustrations, tables, diagrams 20 cm. Bright, clean interior. Name in ink to the tp and 4 short notes in ink to the last page of the memorandum. Otherwise unmarked. Sound binding. Fibre/plastic wrapper show no wear. Silver ink titles are bright. We use both the Canadian Post Office and the United States Postal Service and offer very competitive postal charges. This item weighs 225g and qualifies for inexpensive Lettermail postage within Canada.