Washington, D. C. Vv - December, 1923 
POTASH FROM KELP 
EARLY DEVELOPMENT AND GROWTH OF THE GIANT KELP, 
MACROCYSTIS PYRIFERA 
By 
R. P. BRANDT, Cooperator of the United States Department of Agriculture 
with introduction by 
[J. W. TURRENTINE, Scientist in Soil Laboratory Investigations, Bureau of Soils 
Life History of Macrocysiis pyrifera 
Growth with reference to environment 
Seasonal variation in condition of kelp beds 
Destruction by natural agencies 
Methods and effects of harvesting 
Summary 
Literature cited 
WASHINGTON 
GOVERNMENT PRINTING OFFICE 
