Dr Norman Deno's "Seed Germination: Theory and Practice" and the two supplemental books originated as free downloads at the USDA National Agriculture Library online site. The copies are available here to download from the SRC site.
The books of Norman Deno are in the Public Domain so they are free from copyright so we load them here as a service to members.
Seed germination, theory and practice
http://files.srgc.net/general/Deno-Seed-Germination.pdf (http://files.srgc.net/general/Deno-1st-supplement.pdf)
First supplement to the second edition of Seed germination theory and practice.
http://files.srgc.net/general/Deno-1st-supplement.pdf (http://files.srgc.net/general/Deno-1st-supplement.pdf)
Second supplement to Seed germination theory and practice.
http://files.srgc.net/general/Deno-2nd-supplement.pdf (http://files.srgc.net/general/Deno-2nd-supplement.pdf)
“To plant a seed is a noble deed” - Prof. Norman C. Deno.
Sad news came yesterday about the passing of Prof. Norman C. Deno.
His contributions to deciphering seeds germination requirements will remain unsurpassed and an inspiration for generations to come.
An obituary is posted on NARGS website: https://nargs.org/news/2017-09-24/norman-c-deno-obituary (https://nargs.org/news/2017-09-24/norman-c-deno-obituary)