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OJ3396 -7- , it appears requisite that international relations be defined by treaty be- tween the two Nations. and the surplus waters of the Colorado River system be determined, under Art. III (e) of the Colorado River Compact; that the ultimate limits of development in the Upper Basin be defined under the ap- portionment rerGtofore made by Art. III (a). and the further apportionment to be J1lD.de in the future under Art. III (f) of the Colorado River COJ:lpo.ct; and that interstate relations among States of the LoViBr Division., as com- plicated by various acts and oontracts, be olarified to such e;ctent as may be neoessary for a better understanding of the relative rights of the Up- per and Lo..er Basins under the Colorado River Ccmpaot. 16. The Report evidences that the data and information were assembled in different offices. It gives too impression, by its arrangement, of be- ing tYlO sept\rate sub-basin reports under one cover. The ab sence of basin- wide summaries implies that practises in too two sub-basins, with respect to diversions and uses of water, are so different in oharacter that com- parative summaries for the entire basin cannot be prepared. To make the Report in fact, and in aocordance with its title, 0. Report on the Colorado River Basin, basin-wide sUlIlIIlaries of the data and information should be inc luded in the final revised draft.. This may involve rearrangement of the chapters. - combining chapters IV and VII into one chapter entitled, "Using the ~later," chapters V and VIII into one entitled, "Power from Ha- ter," chapters VI nnd IX into one entitled, "Wealth from I'Tater," - 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) - Sumnary for Colorado River Basin. It is essential that all terms employed in the Report be defined, and be employed consistently throughout too Report, to the end that both sub-basins and all States shall be treated alike. 17. For purposes of the Report the Bureau of Reolamation adopts a so- called "Basin." which is neither the natural basin, "within and from V<hich ..aters naturally drain into the Colorado River system." nor is it the Co- lorado River Basin as defined by the ColoradO River Compact to include. in addition to the natural basin, "all parts of said States without the drainage area of the Colorado River system whioh are now or shall hereafter be benefioially served by v<aters diverted ftoom the system." The so-called "Basin" of the Report has boundaries that coincide with those of the natu- ral basin above Lee Ferry, but which depart from the natural boundaries below Lee Ferry. In the chapters relating to "Power and Wealth from IIater" the boundaries below Lee Ferry are expanded to include all of Southern California, and in the Chapter entitled "Using the I'later," the "Basin" below Lee Ferry includes 7.800 square miles of the Salton Sea drainage ba- sin. inclUding the Imperial Valley. Having adopted such 0. "Basin." the Report presents information concerning waters diverted from the Colorado River system for use outside the natural basin, and designates those above Lee Ferry as "export diversions." Hhile diversions e:<aotly sim! lar in physical and legal character are made below Lee Ferry, the term "export diversions" does not appear in the Lower Basin portion of the Report. pre- sumably because the v<aters are used within the adopted "Basin," though outside the natural basin the same as those above Lee Ferry. Thus the Re- port implies that practises in the Upper Basin differ from those in the