98 EXPLOITATION OF PLANTS 
a few years of good mental team-work will begin to re- 
establish the threatened security of this amazing industry 
upon a sure foundation of knowledge. 
GENERAL REFERENCES 
Economics— 
“The World’s Cotton Crops,’ J. A. Todd. London, 1915. 
“History of the Cotton Manufacture,’ E. Baines. London, 1834. 
“The Cotton Manufacture and Trade,” S. J. Chapman. Man- 
chester, 1907. 
Reports of the International Federation of Master Cotton Spinners, 
Secretary, Arno S. Pearse. Manchester. 
Mechanism of Cotton Spinning— 
“Cotton Spinning,” W. Scott Taggart. 3 vols. London, 1906, 
1917. 
Systematic Botany— 
“ The Wild and Cultivated Cottons of the World,” Sir G. Watt. 
London, 1907. 
Physiology and Genetics— 
“ Studies of Indian Cotton,’’ H. Martin Leake, Journal of Genetics. 
IQ1I, etc. 
“ The Cotton Plant in Egypt,” W. Lawrence Balls, with Bibliography. 
London, 1912. 
“* Analyses of Agricultural Yield,’ pts. i.-iii., W. Lawrence Balls 
and F. S. Holton. Phil. Trans. Roy. Soc., 1915-16. 
Applied Science— 
“The Development and Properties of Raw Cotton,” W. Lawrence 
Balls, with Supplementary Bibliography of Cotton, p. 221. 
A. and C. Black. 5s. London, 1915. 
