Footnotes to Chapter 10:

178 Waddle, B. M. and R. F. Olwick. 1961. Producing seeds of cotton and other fiber crops. USDA Yearbk of Agric.: Seeds. p. 192.
179 Had any of the seed grown, the NSSL could not have handled them because of drug licensing requirements (Loren Weisner, NSSL, pers. comm.).
180 Neither is it to be found in the Vavilov collection.
181 DeMeijer, E. P. M. and L. J. M. van Soest. 1992 The CPRO Cannabis germplasm collection. Euphytica. 62:201-211.
182 USDA. 1929. Bureau of Plant Industry, Annual Report. p. 27.
183 Mankowski, J., L. Grabowska, and P. Baraniecki. 1994. Hemp and flax cultivated on the soil polluted with heavy metals-A biological purification of the soil and a raw material for the pulp industry. Abstract from: Alternative oilseed and fibre crops for cool and wet regions of Europe, a conference at Wageningen Agricultural University, The Netherlands, Apr 7-8, 1994.
184 Martin, A. 1991. Petro-chemical alternative. Garbage 3(6):44-49 (Nov-Dec).
185 Lotz, L. A. P. 1991. Reduction of growth and reproduction of Cyperus esculentus by specific crops. Weed Research 31:153-160.
186 Latta, R. P. and B. J. Eaton. 1975. Seasonal fluctuations in cannabinoid content of Kansas marijuana. Econ. Bot. 29:153-163.