

McLeon, SOIL TEMPERATURES TRANS. R.S.C. VOL. VII,1904, SEC. 111, PLATE 3 
THERMAL DIFFUSIVITY CURVE For SOIL BETWEEN 20 ano 100 INCHES DEPTH. 
HORIZONTAL LINES AEPARSENT AVERAGE VALUE or Se awe Pano Covansa, Fon FULL OLPTH. 
x MARKS - D SAME PERIOD BATHEEN RO“ une bo" 
9 ” ” ” - 60” - /00~ 
VEATICAL LINES . Nai mene Beate wer - re cm 
WATCHED = AREAS . ORPTN OF SNOW on BHOUWO Sense /O1mM me 1 CM : Derras Cumve snows mnosnaie avenncs vaivs or “Ye. 
Le = > 





























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