Hillen Enterprises, Bancroft, ON, 1975, true 1st ed.  Stapled booklet, approximately 65 pages followed by 11 blank pages for personal notes.  Glossy wraps show some edge and cover wear, age toning and some spotting; pages secure with no rust on staples.  Interior pages clean and unmarked; toned with an occasional small age spot; black & white illustrations and charts.  Contents include: Observations, The Source of Pyramid Energy, How the Energy Affects the Living Cells, The Use of Pyramids for Food Production, Food Preservation, Construction Measurements, and more.