10—' Hungry Braes and fat Howes '
W. G. OGG , Ph.D., Director of the Macaulay Institute for Soil Research
Soils are called ' hungry ' because they require feeding with manure before they produce good crops, and those described as ' fat' already contain plenty of plant food. The braes had rich soil at one time, but it has been washed down the slopes into the hollows. Besides, the howes collect and retain more moisture than the braes. The small growth of plants on moorland is sometimes due to too much water, which drowns the plants, but it is also often due to lack of food. Dr. Ogg in his talk this afternoon will also discuss the value of nitrogen, phosphate, and potash in artificial manures.

' The Manchu Empire in China '
EILEEN POWER, Professor of Economic History in the University of London
(From National)

Time and Tune
HERBERT WISEMAN , Director of Music to the Edinburgh Corporation Education
Committee
10—Groups of Notes

Conducted by the Rev. JOHN MACLAGAN ,
Merrylee Church, Glasgow