SEEPAGE OR RETURN WATERS FROM IRRIGATION. 63 
as copious, crops the same in character, subsoil and rock strata of 
much the same inclination. Where the soil is less pervious, a 
greater time must elapse for these results to hold good. 
21. Measurements are greatly needed in the Arkansas and 
Rio Grande valleys, for the determination of facts which will soon 
become of importance. In the Rio Grande, especially, because of 
the claims made by Mexico that irrigation in Colorado is proving 
an injury to her people and infringing privileges guaranteed them 
by treaty. If the results of this investigation apply to the Rio 
Grande, then any injury must be largely compensated by the return, 
and the greater regularity in the flow produced in the river. 
ACKNOWLEDGMENTS. 
§ 61. Information and aid to a greater or less extent has been 
received from too many to mention. To the various Water Com¬ 
missioners, especially to J. L. Armstrong and R. Q. Tenney, of Dis¬ 
trict No. 3, and J. T. Hurley and R. J. Patterson, of Nos. 1 and 64, 
our thanks are especially due. 
By the kindness of G. H. West and D. A. Camfleld, of Greeley, 
a team was furnished us for the measurement of the Platte, in 1895, 
and we are indebted to Receiver Trumbull, of the Union Pacific & 
Gulf Railway, for transportation where necessary during the meas¬ 
urements. 
The diagrams have been drawn by Mr. J. D. Stannard, who 
has also aided the laborious work of reduction of the observations; 
Mr. Trimble has also aid^d extensively in the same work, and in the 
field work, as noted in the detailed observations, and also in preparing 
and checking the tables. 
Through oversight, credit was not given, on page 32, in a part 
of the edition, to Mr. P. J. Preston, for Measurement No. 5, made 
under direction of the State Engineer. 
PRINTED FOE THE STATION 
By The Coxjbier Feinting & Publishing Co., 
FOET COLLINS, OOLO. 
