Feb. M. i9i8 Freezing-Point Method and Soil Solution 



377 



(5A5ie> OF n'A noiSTUREi) 



I0WK5 I2WKS I6WKS Z4WKS 52WK5 40WK.5> 



OULI0JUL24AUCil OCT 22, DLCIS FE.BIZ 



51\N/K5 T\ML FROM 

 MAY \ PLM^JTING 



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I0WK5I2WIC5 16WK5 Z4-VVK5 5ZWK5 4.0WKS 



JULIQ JUL24 AUG.2I OCT.23 DEIC.IO FL5I2 



51WKS TIME FCOn 

 MAY I PLANTING. 



Fig. 6.— Graphs of the depressions of the freezing point in soils 9 and 10, with and \nthout crop. 



