REPORT OF THE CHAIRMAN OP THE SUBSECTIONS ON SOIL FERTILITYAND SOIL CHEMISTRY

ByR. H. BRAY

Chairman of the Subsection

A program on "Potassium Availability withdrawal of three papers and thein Soils", was arranged for Friday morn- transfer of two more to the Soil Test-ing, December 6, 1935» which included Committee's program, the afternoonseven papers. Most of these papers were program was not as crowded as usual,concerned with potassium fixation. The A cooperative program with the SoilFriday afternoon section was left open Physics Subsection on "Soil Colloids"for papers of general interest in soil was arranged with Doctor Olmstead asfertility and chemistry. Due to the Chairman.

186