General Bulletin Index 
47 
Observation on injurious insects. C. P. 
Gillette. B. 19, 1892. 
OliNj Walter H. 
Acclimated seeds. Hints for new 
• settlers in eastern Colorado. P. B. 
24, 1907; Same. B. 123:12, 1907. 
Agronomy section. Report of. R. 
18-20, 1905-1917. 
Cultural methods for sugar beets. 
Progress bulletin. B. 109, 1906. 
Preparation of seed bed, hints for 
plains. P. B. 36, 1907 ; Same. B. 
123 :9, 1907. 
Seeding field peas. P. B. 40, 1907. 
Summer culture to conserve mois- 
ture. Hints for plains settlers. 
P. B. 39, 1907 : Same. B. 123 :10, 
1907. 
The thorough tillage system for the 
plains of Colorado. B. 103, 1905. 
Types of milling wheat for the 
plains. P. B. published in B. 123 : 
20, 1907. 
— and P. Knorr. 
Formalin treatment of seed grain 
for smut. P. B. 24, 1906. 
On the measurement and division of 
water. L. G. Carpente". B. 150, 
1909. 
Ongarth’s tree protector, value of. B. 
6 :6, 1888. 
Onion — 
thrips (Thrips striatus.) B. 24 ;13, 
1893 ; B. 199 :45, 1914. 
remedies. B. 47 :44, 1898. 
Onion growing in the Cache a la Pou- 
dre Valley. Wendell Paddock. B. 81, 
1903. 
Onions in Colorado. E. R. Bennett. B. 
198, 1914. 
Onions — 
cost of pro(5uction. B. 198:7, 1914. 
culture. B. 81 :1903 ; B. 198 :3, 
1914. 
diseases. B. 81 :9, 1903. 
fungous diseases of. B. 212 :31, 
1915. 
harvesting. B. 198 :6, 1914. 
irrigation. B. 198 :5, 1914. 
notes. B. 172:10, 1910; B. 199:19, 
1914 ; B. 241 :22, 1918. 
seed production. B. 198 :8, 1914. 
storage. B. 198 :8, 1914. 
varieties. B. 81 :7, 1903. 
Orange rust (Caeoma nitens ) — 
notes. B. 41:19, 1898; B. 171:16. 
1910; B. 195:18, 1914. 
Orchard — 
grass (Dactylis glomerata.) B. 68 : 
4, 1902. 
heating. B. 223:19, 1917. 
Orchard plant lice and their remedies. 
C. P. Gillette and E. P. Taylor. B. 
134, 1908. 
Orchards — 
cover crops. B. 223:10, 1917. 
fertilizers for. B. 142, 1909. 
food taken from soil by. B. 142 :8, 
1909. 
notes. R. 1 :70, 1888. 
shade crops for. B. 142, 1909. 
spraying costs. B. 223 :13, 1917. 
tillage in. B. 142 :3, 1909. 
Orinthology — 
bibliography. B. 37 ;20, 1897 ; B. 
44 :151, 1898 ; B. 56 :186, 1900. 
history of Colorado. B. 37 :40, 
1897; B. 44:154, 1898; B. 56:190, 
1900. 
Ornithopus sativus. See Serradella. 
Orthoptera, Colorado, list. B. 94:17, 
1904. 
Oryzopsis cuspidata, description and 
analysis. B. 12 :92, 1890. 
Oyster-shell — . 
bark louse (Lepidosaphes uhni ) — 
description and remedies. B. 
114 :15, 1906. 
See also Oyster-shell scale, 
scale (Mytilaspia pomorum ) — 
description and remedies. B. 
47 :13, 1898 ; B. 210 :23, 1915 ; 
B. 71-11, 1902. 
Paddock^ Wendell. 
An apricot blight. B. 84, 1903. 
Botanical and horticultural section, 
Report of. R. 13-21, 1900-1908. 
Crown gall. B. 86, 1903. 
Fruit grower’s association. B. 122, 
1907. 
Large potato vines and no potatoes. 
B. 92, 1904. 
Laying down of peach trees. B. 80, 
1903. 
New alfalfa disease. P. B. 28, 
1906. 
Onion growing in the Cache a la 
Poudre Valley. B. 81, 1903. 
Plant diseases of 1901. B. 69, 
1902. 
Potato failures. P. B. 12, 1902. 
Potato problems. P. B. 26, 1906. 
Pruning of fruit trees. B. 106, 
1905. 
Tillage, fertilizers, and shade crops 
for orchards. B. 142, 1909. 
— and B. O. Longyear. 
Co-operative experiment in tree 
planting. P. B. 22, 1905. 
The shade trees of Denver. B. 96, 
1905. 
