The Facts of Light about Indoor Gardening By Editorial Staff of Ortho Books Books / Paperback Books ISBN: 0917102134 / Publisher: Ortho Books, May 1976 Price Starting at $22.46 Free Shipping Send to a friend Add to Wishlist Below is a list of products arranged by condition. Select the quantity of the product you desire and click the "Add" button. Used - Good Good condition. Barbara G. Mertz Rev Trust custom bookplate on front inside cover. This book formed part of Barbara G. Mertz's personal collection at her home in Frederick, Maryland. $22.46 1 in Stock at Warehouse Quantity Add Free Shipping to continental U.S. OR $1.00 per item discount if shipped to store. Reviews Goodreads reviews for The Facts of Light about Indoor Gardening