The Soil Solution, by Frank K. Cameron 78317 [Subtitle: The nutrient medium for plant growth] [Author: Frank K. Cameron] [Link: https://www.gutenberg.org/ebooks/78317] note: link will be active within two hours of posting. Thanks to Charlene Taylor and the Online Distributed Proofreading Team at https://www.pgdp.net (This file was produced from images generously made available by The Internet Archive/American Libraries.) Regards, Al