30 
Colorado Experiment Station 
Destruction of concrete by alkali. W. 
P. Headden. B. 132, 1908. 
Deterioration of manures under semi- 
arid conditions. W. P. Headden and 
Earl Douglass. B. 168, 1910. 
Deterioration in the quality of sugar 
beets due to nitrates formed in the 
soil. W. P. Headden. B. 183, 1912. 
Dethridge meter. V. M. Cone. B. 215, 
1915. 
Development of the Rocky Ford canta- 
loupe industry. P. K. Blinn. B. 108, 
1906. 
Dewberries — 
culture. B. 136, 1909 ; B. 195 :9, 
1914. 
insects injurious to. B. 210 :35, 
1915. 
packing. B. 136, 1909. 
varieties. B. 60 :10, 1900. 
Dewberry growing. O. B. Whipple. B. 
136, 1909. 
Deyeuxia— 
canadensis. See Blue joint. 
lapponica. B. 12 ;47, 1890. 
stricta. B. 12 :47, 1890. 
sylvatica. B. 12 :44, 1890. 
vittata. See Cucumber beetle, 
striped. 
Digestion experiments with some Colo- 
rado hays and fodders. W. P. Head- 
den. B. 93, 1904. 
Diplachne fascicularis. B. 12 :109, 1890. 
Distichlis maritima See Salt grass. 
Distribution of water ; Power and duties 
of irrigation officials in Colorado. H. 
N. Haynes. B. 67, 1901. 
Ditches, loss by seepage. B. 48, 1898. 
Divide Experiment Station — 
meteorological observations. R. 4 ;95, 
1891. 
report, 
1891. F. Breninger. R. 4 :115. 
1892. F. Breninger. R. 5 :61. 
1893. J. H. McClelland. R. 6 :58. 
1894. J. H. McClelland. R. 7 :74. 
1895. J. H. McClelland. R. 8 :123 
Divisors — 
description. B. 13:6, 1890; B. 27:8, 
1894 ; B. 150:13, 1909; B. 228:3, 
1917. 
tests. B. 228 :7, 1917. 
Divisors. (For the measurement of irri- 
gation water.) V. M. Cone. B. 228, 
1917. 
Dodder (Cuscuta ) — 
alfalfa. B. 8 :6. 1889. 
eradication. B. 248 :10, 1918. 
Dodder (Cuscuta) — (Continued) — 
Alfalfa (Continued) — 
in Colorado. B. 248 :5, 1918. 
life history. B. 248 :6, 1918. 
means of spreading. B. 248 :8, 
1918. 
varieties. B. 248 :9, 1918. 
Dogbane (Apocynum androsaemifolium.) 
B. 211 :57, 1915. 
Doryphora 10-lineata. See Potato beetle. 
Douglass^ Earl See Headden, William 
P. jt. author. B. 168, 1910. 
Drainage water, composition. B. 82 :48, 
1903. 
Dry Creek, water measurement. B. 180, 
pt. 3 :43. 1911. 
Dry farming — 
alfalfa for. B. 90, 1904 ; B. 214:7, 
1915. 
area in Colorado. B. 227 :3, 1917. 
corn for. B. 214 :11, 1915. 
crops for. B. 103 :12, 1905 ; P. B. 
18, 1903; B. 123:6, 1907; B. 145: 
22, 1909 ; B. 227 :16, 1917. 
Dairying on. B. 145 :7, 1909. 
fruit trees for. B. 173, 19i0. 
garden. B. 145 :14, 1909. 
in eastern Colorado. B. 77, 1903 ; 
P. B. 18, 1903; B. 123:6, 1907; B. 
145, 1909. 
management. B. 227 :16, 1917. 
moisture conservation. B. 227 :8, 
1917 ; B. 145 :15, 1909. 
millets for. B. 214 :19, 1915. 
plowing. B. 103 :3, 1905. 
poultry raising. B. 145 :11, 1909. 
principles of. B. 103 :3, 1905. 
seed quantities for. B. 103 :7, 1906 ; 
B. 227:15, 1917. 
seed selection for. B. 103 :7, 1905. 
soils treatment. B. 227 :7, ).917. 
sorghums for. B. 214 :13, 1915. 
sweet clover for. B. 214 :20, 1915. 
tillage in. B. 103 :3, 1905. 
Dry farming in Colorado. Alvin Kezer. 
B. 227, 1917. 
Dry land farming in eastern Colorado. 
(Information bulletin.) H. M. Cot- 
trell. B. 145, 1909. 
Dry land specialist report. J. W. 
Adams. R. 29 :16, 1916. 
Dry land station report. See Plains 
Substation report. 
Duncan^ Charles A. 
San Luis Valley Experiment Station 
report. B. 7-9, 1894-1896. 
Durango — 
precipitation, 1886-1911, B. 182 :65 
1912; 1886-1917, B. 245:60, 1918. 
Dvorachek, H. E. 
Silos and silage in Colorado. B. 
200, 1914. 
