Hemp has been around for 1,000's of years and not much has changed for the plant itself. Here is more information for general reading.....

http://www.industrialhemp.net/pdf/USDA_Bulletin_1935.pdf

http://www.votehemp.com/PDF/HempIsHip.pdf

http://www.industrialhemp.net/pdf/small.pdf


Industrial Hemp in the United States:
Status and Market Potential

http://www.industrialhemp.net/pdf/ages001E.pdf