Up for sale: a rare hard to find lot! Allyn Bacon- Our Environment It’s Relation To Us, 1964. Includes: Hardcover Student Textbook, Paper bound Science Discovery Book, and Teacher’s Manual to Textbook. Used. The textbook has some light pencil notes and markings. They show wear from age and storage. Have worn corners, edges, and some yellowing of pages from age . See pictures! Ask all questions before sale. Shipping to US only. Check my other items!