EXPERIMENT STATION BULLETINS. 



567 



Table S. Freezing point lowering and the corresponding concentration and the osmotic pressure of various 



types of soil at low and high moisture contents. 



Percentage of Moisture. . 

 Freezing point depression 



Parts per million 



Osmotic pressure 



Percentage of moisture. . . 

 Freezing point depression 



Partsper million 



Osmotic pressure 



Heavy silt 

 loam (1). 



Heavy silt 

 loam (2). 



16.64 

 1.370 

 33,415 

 16.48 



38.30 17.08 

 .007 1.010 



171 24,636 

 .084 12.16 



Heavy silt 

 loam (7). 



7.00 

 1.100 

 26,830 

 13.24 



26.53 

 .029 



707 

 .350 



Light sandy 

 loam (13). 



Percentage of moisture 7.20 20.33 



Freezing point depression I .590 .053 



Parts per million. 

 Osmotic pressure . 



3.48 16.88 

 .293 .028 

 7,146 683 

 Osmotic pressure i 3 .532 .338 



Percentage of moisture. . . 

 Freezing point depression. 

 Parts per million. 



390 

 108 



,293 

 .639 



Texas fine 



sandy loam 



(19). 



Washington 

 Sand (25). 



Percentage of moisture 4 .44 



Freezing poiat depression 630 



Parts per million 15,370 



Osmotic pressure 7 . 590 



Percentage of moisture. . . 

 Freezing poiat depression 



Parts of million 



Osmotic pressure 



Percentage of moisture. . . 

 Freezing point depression 



Parts per million 



Osmotic pressure 



40.65 

 .020 



488 

 .241 



Very light 

 silt loam (8). 



11.28 

 .900 

 21,950 

 10.84 



52.37 

 .025 



610 

 .301 



Texas, Houst- 

 ton black 

 clay (14). 



21.97 42.42 



.748 



18,246 



9.009 



.054 

 ,317 

 .651 



Heavy silt 

 loam (3). 



38.46 

 .025 



610 

 .301 



Light silt 

 loam (9) 



13.30 38.45 

 1.000 .018 

 24,390 439 

 12.04 : .217 



Texas Craw- 

 ford clay. 

 (15). 



18.29 

 .4.55 

 11,100 

 5.483 



33.90 

 .060 

 1,463 

 .724 



Washington ', Washington 

 heavy silt fine sandy 

 loam (20). loam (21). 



14.03 

 .903 

 22,020 

 11.20 



14.70 9.00 

 .045! 1.245 

 1,098)30,370 

 .542 1.552 



33.83 

 .028 



683 

 .338 



Wisconsin 

 Superior 

 clay (26). 



Wisconsin 



Carrington 



silt loam 



(27). 



24.10 18.85 39.40 '12.52 32.74 11.36 

 .1161 1.200i .01711.248 .043 .689 

 2, 829129, 268. 415 130.440 1,049 16,800 

 1.399 12.281 .205 14.80 .518 8.300 



Light silt 

 loam (4). 



12.65 

 1.170 

 28,540 

 14.08 



38.67 

 .038 



927 

 .458 



Heavy sandy 

 loam (10). 



11.15 32.13 

 .800! -046 

 ]9,510i 1,122 

 9.6351 .554 



Texas brown- 

 ish black 

 loam (16). 



Heavy silt 

 loam (5). 



Light clay 

 loam (6). 



13.45 J38.22 

 1.200! .029 

 29,270 707 



14.44 



11.54 



1.090 

 26,590 



.350 13.12 



Fine sandy 

 loam (11). 



6.89 

 .890 

 21,710 

 10.72 



26.46 

 .030 



732 

 .362 



11.38 

 .608 

 14,830 

 7.325 



27.63 

 .038 



927 

 .458 



Washington 



silt loam 



(22) 



32.17 

 025 



610 

 .301 



Wisconsin 



Carrington 



silt loam. 



(28). 



Wisconsin 

 Colby silt 

 loam (31). 



12.10 

 .863 

 21,050 

 10.72 



37.98 

 .025 



610 

 .301 



Pennsylvania 



silt loam 



(37). 



7.68 

 .995 

 24,270 

 11.98 



33.18 

 .025 



610 

 .301 



Wisconsin 

 Plainfield 

 F. S. (32). 



5.00 

 .260 

 6,342 

 31.34 



24.65 

 .015 



366 

 .181 



Pennsylvania 



silt loam 



(38) 



10.16 

 .690 

 16,830 

 8.312 



34.42 

 .030 



732 

 .362 



Minnesota 

 clay (33). 



22.39 39.83 

 .987 .075 

 24,070 1,829 

 11.56 .904 



Pennsylvania 



silt loam 



(39) 



8.72 

 .870 

 21,220 

 10.48 



33.87 

 .020 



488 

 .241 



31.86 

 .035 



854 

 .422 



Minnesota 



sandy loam 



(34). 



11.54 

 .969 

 23,630 

 11.56 



34.21 

 .019 



463 

 .229 



Rhode Island 



sandy loam 



(40) 



9.62 

 .620 

 15,120 

 7.469 



37.07 

 .05P 

 1,342 

 .66S 



Texas black 



sandv loam 



(17) 



9.87 

 .128 

 3,122 

 1.434 



27.73 

 .040 



976 

 .482 



Washington 



clay loam 



(23). 



12.78 

 .820 

 20,000 

 9.875 



32. 59 

 .048 

 1,171 

 .579 



Wisconsin 

 Miami silt 

 loam (29). 



8.86 

 .802 

 19,560 

 9.659 



36.07 

 .029 

 707 



32.50 

 .022 



537 

 .265 



Sand (12). 



2.43 

 .380 

 9,268 

 4.58 



20.27 

 .015 



366 

 .181 



Texas Nor- 

 folk sandy 

 loam (18). 



3.53 

 .273 

 6,658 

 3.291 



16.37 

 .058 

 1,415 

 .700 



Washington 



fine sand 



(24). 



8.00 

 1.450 

 35,370 

 17.44 



31.72 



.187 

 4,561 

 2.255 



Wisconsin 

 Miami silt 

 loam (30). 



7.21 



1.080 



26,340 



.350 13.00 



Minnesota 

 sand (35). 



30.41 

 .029 



707 

 .350 



Pennsylvania 



silt loam 



(36) 



4.62 

 .433 

 10,560 

 5.218 



24.44 8.43 

 .023 .900 



561 21,950 

 .277,10.84 



32.82 

 .025 



610 

 .301 



Rhode Island 



sandy loam 



(41) 



9.96 

 .940 

 22,930 

 11.32 



Kentucky 



Carrington 



clay loam 



(42) 



34.12 .39.28 |92.76 

 .020 1.0751 .039 



488 126,220,951 

 .2411 12. 94 .470 



