CACHE LA POUDRE RIVER, COLORADO. 
31 
of scientific value. Various forms of self-recording nilometer have 
been used at this point, and an apparatus has finally been installed by 
which the height of water at the river station is recorded by electrical 
devices at the Agricultural College at Fort Collins. The results of 
computations of daily discharge for 1893 and 1894, as published in the 
annual report of the State engineer, are given in the following table. 
Besides the computations of daily discharge at this point, a series of 
measurements have been made along Cache la Poudre Creek and South 
Platte Eiver to determine the amount of water taken from these streams 
and the quantity flowing in the channel at various points, and as a 
result the amount which enters the river by means of percolation or 
seepage. The results obtained are of the highest value, showing, as 
they do, that these streams, and inferentially others of this class, 
receive large quantities of water during and after the irrigating season 
by the soaking of the ground and a gradual return to the drainage 
lines. 
Daily mean discharge of Cache la Poudre Elver for 1893 and 1894. 
[Second-feet.] 
Day. 
May. June, j July. Aug 
217 
344 
278 
1,047 
1,043 
920 
841 
870 
974 
876 
812 
878 
1,107 
929 
1.230 
1,108 
1,041 
1,197 
1,767 
2,198 
2,667 
2, 912 
2,949 
2,252 
2,386 
2, 483 
2,427 
2,274 
1,905 
1,758 
1,616 
1,422 
1,354 
1,246 
1,244 
1,177 
1,132 
1, 144 
1, 038 
996 
997 
947 
795 
840 
833 
744 
693 
663 
678 
661 
602 
608 
576 
526 
511 
476 
454 
401 
384 
359 
348 
353 
444 
463 
406 
383 
354 
343 
336 
343 
321 
282 
256 
251 
251 
293 
327 
298 
239 
189 
226 
218 
248 
219 
191 
161 
155 
158 
158 
141 
151 
1894. 
May. June. July. Aug. Sept. Oct. Nov 
492 
481 
483 
572 
663 
793 
1, 057 
1, 299 
1, 208 
1, 246 
1,321 
1,45:! 
1,538 
1,829 
1,838 
1,355 
1,315 
1,697 
1,842 
2,051 
1,779 
1,585 
1,302 
1,483 
a 1,650 
1,817 
1,984 
2,151 
2,318 
2, 485 
2,652 
2, 820 
3,046 
3,206 
3,461 
3,672 
3,514 
2, 782 
2.094 
1,908 
2,067 
2, 236 
2, 346 
2,291 
2, 104 
2,027 
1, 791 
1, 915 
1,717 
1, 586 
1,452 
1,458 
1,427 
1,375 
1, 250 
1,216 
1, 228 
1. 120 
1,065 
1,067 
1,109 
1, 082 
1,109 
1,273 
1, 234 
1,158 
1,078 
956 
925 
925 
923" 
936 
1,177 
878 
982 
899 
782 
817 
820 
728 
696 
647 
602 
567 
561 
567 
553 
522 
497 
461 
444 
479 
494 
512 
440 
379 
396 
513 
487 
477 
464 
427 
393 
362 
365 
369 
347 
319 
298 
295 
282 
278 
271 
274 
240 
229 
212 
204 
179 
182 
165 
162 
171 
182 
178 
179 
161 
152 
140 
227 
296 
281 
276 
246 
219 
178 
165 
155 
157 
152 
146 
135 
118 
113 
108 
105 
108 
107 
101 
99 
132 
145 
144 
158 
135 
141 
118 
146 
151 
143 
128 
131 
120 
107 
99 
94 
93 
93 
93 
93 
89 
97 
82 
85 
87 
84 
84 
84 
78 
74 
71 
71 
78 
91 
95 
96 
93 
89 
94 
85 
80 
85 
77 
42 
116 
150 
146 
115 
107 
&60 
b'yl 
103 
90 
92 
91 
89 
93 
a Interpolated from May 26 to June 1. 
b Float stopped by ice. 
The lower South Platte in its course through northeastern Colorado 
is utilized to such an extent for irrigation that the channel becomes 
dry during the great part of the year. No measurements as yet have 
been made of the quantity flowing into Nebraska. The sandy channel 
and lowlands adjacent to this are saturated with water, and although 
it may not be feasible to bring this out by gravity methods for supply- 
