40 
Colorado Experiment Station 
Howard scale (continued) — 
120 :6, 1907. 
enemies of. B. 120 .TO, 1907. 
food plants. B. 120 :4, 1907. 
history. B. 120:3, 1907; P. B. 30, 
1907. 
injuries by. B. 120 :5, 1907. 
means of distribution. B. 120 :8. 
1907. 
notes. B. 38:37. 1897 ; R. 15:107, 
1902; B. 114:6, 1906; B. 114:14, 
1906; B. 119:8, 1907; B. 210:11, 
1915 ; B. 210 :22, 1915. 
plate describing. R. 14 :16. 1901. 
remedies. B. 71 :14, 1902 ; B. 120 : 
12, 1907 ; P. B. 30, 1907. 
Howard scale. Estes P. Taylor. B. 
120, 1907. 
Howard scale. Estes P. Taylor. P. B. 
30, 1907, 
Huffington^ M. J. 
Notes on tomatoes. B. 30 :26, 1894. 
strawberries and grapes. B. 29, 
1894. 
See Crandall, Charles S. jt. author. 
B. 26 :11, 1894. 
Humidity in relation to agriculture. B. 
224 :26, 1917. 
Huntley^ Fred A. 
Arkansas Valley Experiment Sta- 
tion report. R. 5-7, 1892-1894. 
Seeding, tillage, and irrigation. B. 
26 :25, 1894. 
Hyalopterus arunclinis. See Mealy plum 
louse. 
Hydraulic equivalents, table. B. 207 :16, 
1915. 
Hydrocyanic acid gas — 
as an insecticide. B. 71 :32, 1902 ; 
B. 114:40, 1906; B. 210:50, 1915. 
Hymenoxys floribunda. See Rubber 
plant. Colorado. 
Hyoscyamus niger. See Henbane, black. 
Hyphantria cunea. See Fall web- worm. 
Hypholoma. B. 201 :26, 1914. 
Imported cabbage butterfly. See Cab- 
bage butterfly, imported. 
Inch, water. See Water inch. 
Index bulletin. W. J. Quick. B. 18, 
1891. 
Influence of food upon pure fat present 
in milk. The best milk tester for the 
practical use of the farmer and dairy- 
man. W. J. Quick. B. 20, 1892. 
Information concerning the Colorado 
Carriage Horse Breeding Station. J. 
O. Williams. B. 166, 1910. 
\ 
IngersolLj Charles L. 
Experiment Station report. R. 1-3, 
1888-1890. 
— and O’BrinEj David. 
Sugar beets. B. 11, 1890, 
Injurious insects. C. P. Gillette. B. 
19, 1892. 
Insect — 
traps, description. B. 71 :33, 1902 ; 
B. 114:42, 1906; B. 210:52, 1915. 
Insect enemies of the orchard, C. P. 
Gillette. B. 38, 1897. 
Insect pests. A few common, C. P. 
Gillette. B. 38, 1897. 
Insect pests and their remedies. Colo- 
rado’s. C, P, Gillette, B. 47, 1898. 
Insecticides — 
application. B. 71:35, 1902, B. 
114:43, 1906; B. 210:53, 1915. 
arsenical, B. 6 :4, 1888. 
experiments. B. 11 :163, 1898. 
for grasshoppers. B, 233:14, 1917. 
notes. P. B. 20, 1903. 
preparation and use. B. 6 :4, 1888; 
B. 47:54, 1898; B. 71:20, 1902; 
P. B. 21, 1904 ; B. 114 :28, 1906 ; 
B. 210 :42, 1915. 
Insects and insecticides, J. Cassidy. 
B. 6, 1888. 
Insects and insecticides. C. P. Gillette. 
B. 71, 1902. 
Insects and insecticides. C, P. Gillette. 
B. 114, 1906. 
Insecticides. (Revision of B. 114.) C. 
P. Gillette and G. M. List. B. 210, 
1915. 
Instructions for co-operative tree plant- 
ing. B. O. Longyear. P. B. 25, 1906, 
Investigations of the Great Plains. Un- 
irrigated lands of eastern Colorado, 
Seven years study. J. E. Payne. B. 
77, 1903. 
Irish potatoes. Fruit raising. Sugar 
beets. F. L. Watrous. B. 21, 1892. 
Irrigated agriculture in the San Luis 
Valley, V, M. Cone and Alvin Kezer. 
B. 209, 1915. 
Irrigation — 
administration of Colorado. B. 67 : 
3, 1901. 
changes in water due to. B. 82 :28, 
1903. 
early, B. 59 :9, 1900. 
effect at head of stream, B. 33 :57, 
1896. 
experiments in. B. 1:4, 1887. 
law (Colorado.) B. 67:5, 1901. 
land under, 1889. R. 2 :56, 1889 ; 
