...Papers treat of a variety of subjects, and the total number issued is large. They have therefore l>een classified into the following series: A, Economic...water; L, Quality of water; M, Methods of hydrographic investigations; N, Water power; O, Underground waters; P, Hydrographic progress reports. This bulletin...

...paleontology; I), Petrography and mineralogy; K, Chemistry and physics; F, Geography; G, Miscellaneous; II, Forestry; I, Irrigation; J, Water storage; K, Pumping water; L, Quality of water; M, General hydrographic investigations; N, Water power; O, Underground waters; P, Hydrographic progress...

...paleontology; D, Petrography and mineralogy; E, Chemistry and physics; F, Geography; G, Miscellaneous; 11, Forestry; I, Irrigation; J, Water storage; K, Pumping water; L, Quality of water; M, General hydrographic investigations; N, Water power; O, Underground waters; P, Hydrographic progress...

...professional papers and bulletins the water-supply papers are divided into a number of series, as follows : (I) Irrigation. ( J ) Water storage. (K) Pumping water. (L) Quality of water. (M) General liydrographic investigations. (X) Water power. (O) Underground waters. (!') Hydrogniphic progress...

...Irrigation Papers was therefore begun. -The papers of this series have been classified as follows: ( 1 ) Irrigation. ( J ) Water storage. (K) Pumping water. (L) Quality of water. (M) General hydrographic investigations. (N) Water powers. (O) Underground waters. (P) Hydrographic progress...