56 
Colorado Experiment Station 
Robbins, Wilfred W. (Continued) — 
Native vegetation and climate of 
Colorado in their relation to ag- 
riculture. B. 224, 1917. 
— and EggingtoNj G. E. 
Alfalfa dodder in Colorado. B. 
248, 1918. 
— and RbinkinGj Otto A. 
Fungous diseases of Colorado crop 
plants. B. 212, 1915. 
— and VasbYj H. E. and Eggington, 
G. E. 
Cleaned, treated, and tested seed 
for Colorado. B. 238, 1918. 
See Glover, G. H. jt. author. B. 
211, 1915 ; B. 246, 1918. 
RobbrtsoNj J. B. 
Plains Sub-station report. R. 17- 
22, 1904-1909. 
Rain-belt Experiment Station re- 
port. R. 7-8, 1894-1895. 
Rocky Ford — 
Cantaloupe industry history. B. 
108, 1906. 
melon’s grower’s association devel- 
opment. B. 108 :6, 1906. 
meteorological observations. R. 
15:194, 1902. 
precipitation. 1888-1911, B. 182 :42, 
1912; 1888-1917, B. 245:44, 1918. 
temperature. 1888-1911, B. 182 :40, 
1912; 1888-1917, B. 245:41, 1918. 
Rodents, methods of extermination. B. 
209:31, 1915. 
Rolfs, F. M. 
Potato failures, a preliminary re- 
port, B. 70, 1902. 
Potato failures, a second report. B. 
91, 1904. 
See Paddock, Wendell, jt. author. 
P. B. in B. 64 :21, 1901. 
Root — 
gall. B. 195 :18, 1914. 
rots. B. 118 :10, 1907. 
Roses, insects injurious to. B. 210 :40, 
1915. 
Rubber plant (Hymenoxys floribunda ) — 
effect on live stock. B. 113 :22, 
1906. 
Colorado, poisoning. B. 211 :68, 
1915. 
Russian thistle — 
analysis. B. 135 :15, 1908. 
feeding value. P. B. 5, 1900 ; Same. 
B. 64 :15, 1901. 
notes. B. 135:15, 1908; B. 28, 1894. 
Russian thistle as a forage crop. J. E. 
Payne. P. B. 5, 1900; Same. B. 64: 
15. 1901. 
Rust-resisting ; cantaloupe. Philo K. 
Blinn. B. 104, 1905. 
Rusts — 
poisoning in animals. B. 211 :10, 
1915. 
Rusty brown plum louse. See Plum 
aphis, rusty brown. 
Rydberg, F. A. 
Flora of Colorado. B. 100, 1905. 
Rye — 
culture, San Luis Valley. B. 209 : 
28, 1915. 
experiments. B. 2 :12, 1887. 
grass (Lolium perenne.) B. 12 :44, 
1890. 
giant (Elymils condensatus.) B. 
12:54, 1890. 
Italian. B. 12 :109, 1890. 
smut control. B. 238 :30, 1918. 
Sabina. See Cedar, red. 
Sackett, Walter G. 
Ammonifying efficiency of certain 
Colorado soils. B. 184, 1912. 
A bacterial disease of alfalfa. B. 
158, 1910. 
Bacterial stem blight of field and 
garden peas. B. 218, 1916. 
Bacteriological section, Report of R. 
21 :31, 1908-1918. 
Bacteriological studies of the fixa- 
tion of nitrogen in certain Colo- 
rado soils. B. 179, 1911. 
Butter making. Clean milk and 
commercial starters. B. 156, 1910. 
Comparative bacteriological study 
of the water supply of the city 
and county of Denver, Colorado, 
B. 225, 1917. 
Hold-over blight in the pear. B. 
177, 1911. 
Home-made cider vinegar. B. 192, 
1913. 
A new alfalfa disease, stem blight. 
(An abbreviated edition of bulle- 
tin 158.) B. 159, 1910. 
Nitrifying efficiency of certain 
Colorado soils. B. 193, 1914. 
Some bacterial diseases of plants. 
B. 138, 1909. 
Some soil changes produced by mi- 
cro-organisms. B. 196, 1914. 
Spur blight of the red raspberry 
caused by Sphaerella rubina. B. 
206, 1915. 
See Kezer, Alvin, jt. author. B. 
226, 1917; B. 234, 1918. 
Sage, poisoning by. B. 211 :67, 1915. 
