66 



Series XII 



(Irrigated) 



THE ROYAL SOCIETY OF CANADA 

 Timothy 

 Sec. 7, Tp. 22, Rge. 22, W. of the 4th Mer. 



Collected July 24, 1919 



In Groups 1696 and 1695 the alkali is sodium sulphate with a 

 trace of sodium carbonate. In Group 1694, representing the bare 

 spot, the saline content is much higher. It consists essentially of 

 sodium sulphate and calcium sulphate, but magnesium sulphate is 

 also present in considerable amounts. In Groups 1695 and 1694 the 

 analysis showfe higher concentrations of alkali near the surface. 



Group 1696. Good growth; the timothy was thick and of good 

 length. Location of group about 42 feet from Group 1694 (bare spot). 

 No indication of alkali impregnation. Nature of soil: "A," rich 

 sandy black loam, with large percentage of humus, air-dries to friable 

 masses; "B," damp, grey sandy clay, streaked with black (vegetable 

 matter), fairly plastic, brittle masses on drying, showing efflorescence; 

 "C" and "D," greyish-brown sand with some clay. 



The alkali content throughout the group is negligible. The 

 sodium sulphate is only a "trace," and the sodium carbonate is well 

 below the toxic limits. 



Group 1695. Poor and meagre growth. Alkali showing on 

 surface. Location of group about 15 feet from bare spot. Nature of 

 soil: "A," rich black, moderately heavy loam, marked efflorescence on 

 drying; "B," brownish -grey clay, wet, plastic, with a little sand and 



