54 
Colorado Experiment Station 
Poverty weed (Iva axillaris.) B. 23 :9, 
1893. 
Prairie dog, extermination. P. B. 16, 
1903 ; B. 209 :31, 1915. 
Prairie dog as a range pest and meth- 
ods of extermination. J. E. Payne. 
P. B. 16, 1903. 
Precipitation. See Meteorological ob- 
servations; Cheyenne Wells; Fort 
Collins; Grand Junction; Rocky Ford. 
A preliminary list of the Hemiptera of 
Colorado. C. P. Gillette and Carl 
F. Baker. B. 31, 1895. 
Preliminary report on the duty of wa- 
ter L. G. Carpenter. B. 22. 1893. 
Preliminary report on the fruit interests 
of the state. C. S Crandall. B. 17, 
1891. 
Preparation of the seed bed ; hints for 
plains settlers. W. H. Olin. P. B. 
36, 1907 ; Same. B. 123:9, 1907. 
Prionoxistus roMniae. See Cottonwood 
borer. 
Pristiphora grossulariae. See Currant 
saw-fly. 
Productiveness and degeneracy of the 
Irish potato. C. L. Fitch. B. 176, 1910. 
Properties of Colorado wheat. W P. 
Headden. B. 237, 1918. 
Pruning directions. B. 139 :3, 1909. 
Pruning fruit trees. Wendell Paddock. 
B. 106, 1905. 
Pruning mature fruit trees. O. B. 
Whipple. B. 139, 1909. 
Pruning locust and catalpa trees for 
timber. B. O. Longyear. P. B. 41, 
1907. 
Pseudomonas medicagnis. See Alfalfa 
stem blight. 
Pseudotsuga mucronata. See Fir. Doug- 
las. 
Psychrometer. B. 49 :6, 1898. 
registering. B. 49 :8, 1898. 
Publications, Editor of. Report of, 
1917. R. L. Crosman. R. 30:31. 
1918. R. L. Crosman. R. 31 :45. 
Puccinia asparagi. See Asparagus rust. 
Puffballs. B. 201:12, 1914. 
Pulvinaria innumerabilis. See Maple 
scale, cottony. 
Pumpkin, notes. B. 199 :27, 1914. 
Putnam scale (Aspidiotus ancylus ) — 
description and remedies. B. 47 :15, 
1898 ; B. 114 :13, 1906. 
notes. B. 38:36, 1897; R. 13:125. 
1900. 
Pyrethrum, as an insecticide. B. 6 :6, 
1888; B. 71:30, 1902; B. 114:38, 1906. 
Quercus See Scrub oak. 
Quick^ Walter J. 
Agricultural section. Report of. R. 
4, 1891. 
The best milk tester for the prac- 
tical use of the farmer and dairy- 
man. The influence of food upon 
the pure fat present in milk. B. 
20, 1892. 
concerning subjects investigated by 
the Experiment Station. Special 
bulletin “A”. 
Index bulletin. Indexing the first 
seventeen bulletins of the station 
for Volume 1. B. 18, 1891. 
Report of the director. R. 4-5, 
1891-92. 
Quince — 
rust (Gymnosporangium) B. 69 : 
18, 1902. 
tree pruning. B. 139 :18, 1909. 
Rabies — 
control. B. 162 :8, 1910. 
history. B. 162 :3, 1910. 
nature of. B. 162 :4, 1910. 
Rabies. G. H. Glover and B. F. Kaupp. 
B. 162. 1910. 
Radishes. B. 199 :27, 1914 ; B. 241 :27, 
1918. 
Rainbelt Experiment Station report. 
1894. 
J. 
B. 
Robertson, 
, R. 7 :70. 
1895. 
J. 
B. 
Robertson, 
R. 8 :137. 
1896. 
J. 
E. 
Payne. 
R. 9 :175. 
1897. 
J. 
E. 
Payne. 
R. 10 :93. 
1898. 
J. 
E. 
Payne. 
R. 11:203. 
1899. 
J. 
E. 
Payne. 
R. 12 :52. 
For later reports see Plains Sub- 
station report. 
Rainbelt Experiment Station. Six years 
work. R. 12 :71, 1899. 
Rainfall — 
Cheyenne Wells. P. B. in B. 123 : 
31, 1907. 
Denver. P. B. in B. 123 :24, 1907. 
for Colorado. B. 103 :25, 1905 ; B. 
145 :15, 1909. 
Fort Collins. P. B. in B. 123 :25, 
1907. 
Hemps. P. B. in B. 123:27, 1907. 
Le Roy. P. B. in B. 123 :29, 1907. 
Rocky Ford. P. B. in B. 123:30, 
1907. 
Wray. P. B. in B. 123:26, 1907. 
Yuma. P. B. in B. 123:28, 1907. 
Rainfall on the plains. L. G. Carpenter. 
P. B. in B. 123:21, 1907. 
Sec also Meteorological observa- 
» tions. 
