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OOH3~j -7- it appears requisite that international relations be defined by treaty be- tv-een the two Hations. and the surplus waters of the Colorado River system be determined. under Art. III (e) of the Colorado River Compaot; that the ultimate limits of development in the Upper Basin be defined under the ap- portionment roretofore made by Art. III (a). and the further apportionment to be lIlI1de in the future under Art. III (f) of the Colorado River Compact; and that interstate relations among States of the Lower Division. as com- plicated by various acts and contracts. be clarified to such e;~ent as may be necessary for a better understanding of the relative rights of the Up- per and Lower Basins under the ColoradO River Comp,'ct. 16. The Report evidences that the data and information were assembled in different offices. It gives the impression. by its arrangement. of be- ing two separate sub-basin reports under one cover. The absence of basin- wide summaries implies that praotises in the two sub-basins. with respeot to diversions and uses of "ateI'. are sO different in oharacter that oom- parative summaries for the entire basin cannot be prepared. To make the Report in fact, and in accordanoe with its title. a Report on the Colorado River Basin, basin-wide summaries of the data and information should be ino luded in the final revised draft. This may involve rearrangement of the chapters. - combining chapters IV and VII into one chapter entitled. "Using the Hater." chapters V and VIII into one entitled. "Power from 1Ja- tel'," ohapters VI and IX into one entitled. "Wealth from Hater." _ with each of the three revised chapters being subdivided into Part 1 - Upper Colorado River Basin. Part 2 - Lower Colorado River Basin. and Part 3 (to be added) - Summary for ColoradO River Basin, It is essential that all terms employed in the Report be defined. and be employed oonsistently throughout the Report. to the end that both sub-basins and all States shall be treated alike, . 17. For purposes of the Report the Bureau of Reclamation adopts a so- called "Basin." whioh is nei ther the natural basin, "within and from whioh v-aters naturally drain into the Colorado River system." nor is it the Co- lorado River Basin as defined by the Colorado River Compaot to, inclUlie. in addition to the natural basin. "all parts of said Stat~s without the drainage area of the Colorado River system whioh are now' 01' s'hall hereafter be benefioially served by waters diverted ft'oln the syst,em;". The so-oalled "Basin" of the Repo['t has boundaries that ooincide with those of the natu';' ral basin above Lee Ferry. but whioh depart from the natural boundaries below Lee Ferry. In the ohapters relating to "po...."r and Wealtn from Hater" the boundaries below Lee Ferry are expanded to inclUde all of Southern California. and in the Chapter entitled "Using the Hater." the "Basirl" below Lee Ferry includes 7.800 square miles of the Salton Sea draina&l,,'ba- sin. including the Imperial Valley. Having adopted such a "Basin." ';;:~!;l , Report presents information ooncerning waters diverted from the Color~\lo River system for Use outside the natural basin. and designates those ~b~e Lee Ferry as "export diversions." While diversions exaotly sinii'~ar in physical and legal character are made be'idw Le,e Ferry, tM.i;;I;Il'm If~xport diversions" dces not appear in the Lower Basin portion oft:fi~" ij.eport. pre- sumably beoause the waters are us ed within the adopted ~Basfn:'" though outside the natural basin the same as those above Lee Ferry. Thus the Re- port implies that p['actises in the Upper Basin differ from those in the .1", ,