22 
COLORADO EXPERIMENT STATION 
loam; never received commercial fertilizer or stable manure; cotton 
1912; corn 1911 ; nitric nitrogen 7 p. p. m.; chlorin 98 p. p. m. 
Sample No. 59.—Georgia. Received March 21, 1913; red clay 
loam; cotton for last three years with average yield of four hundred 
pounds per acre; nitric nitrogen 14 p. p. m.; chlorin 106 p. p. m. 
Sample No. 60. —North Carolina. Received March 22, 1913; 
light colored clay; planted to corn for several years, gave an average 
yield of forty to fifty bushels per acre; no manure or fertilizer ap*- 
plied; said to be very good corn land when properly cared for; sam¬ 
ple was very dry when received; nitric nitrogen 6 p. p. m.; chlorin 8 
p. p. m. 
Sample No. 61. —North Carolina. Received March 19, 1913; 
white sandy loam containing a great deal of sharp white sand; very 
little organic maltter; tobacco in 1912; wheat in 1913; wet; nitric 
nitrogen 3 p. p. m.; chlorin 6 p. p. m. 
Sample No. 62. —California. Received March 8, 1913; clay loam 
with some adobe; no white alkali on surface; moist; grapes for past 
few years; nitric nitrogen 4 p. p. m.; chlorin 26 p. p. m. 
Sample No. 63. —California. Received March 8, 1913; sandy 
loam; moist, alfalfa field, no white alkali on surface and no brown 
color; nitric nitrogen 4 p. p. m.; chlorin 8 p. p. m. 
Sample No. 64.—California. Received March 8, 1913; sandy 
loam,; moist; in small grain 1912. No white alkali; nitric nitrogen 
6 p. p. m.; chlorin 8 p. p. m. 
Sample No. 65. — Arkansas. Received March 28, 1913; red sandy 
loam from Arkansas bottom; co'tton in 1912, soil very wet when col¬ 
lected, so it was dried before sent; nitric nitrogen 4 p. p. m.; chlorin 
62 p. p. m. 
Sample No. 66. —Oklahoma. Received March 25, 1913; clay loam; 
sample taken to depth of six inches; alfalfa in 1911, cane in 1912. The 
person who sent the sample states that it has always been difficult to 
get trees to grow on this land; nitric nitrogen 40 p. p. m.; chlorin 
6 p. p. m. 
Sample No. 6j. —California. Received March 25, 1913; heavy 
silt loam; white alkali abundant as an incrustation where the sample 
was taken; no brown color; moist; no irrigation; young mixed or¬ 
chard; nitric nitrogen 120 p. p. m.; chlorin 700 p. p. m. 
Sample No. 68. —California. Received March 25th, 1913; light 
sandy loam, the prevailing soil in this region; no white alkali; sugar- 
beets in 1911, barley in 1912, and set to plums in 1913; nitric nitrogen 
7.4 p. p. m.; chlorin 8 p. p. m. 
Sample No. 69. —California. Received March 28, 1913; virgin 
soil from foothills; surface removed to avoid contamination due to wash; 
