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<br />3 <br /> <br />according to the Special Water Master1s monthly report. Acreage for the 620 <br /> <br />allottees varied from 2 to 72,861. Variations of both number of allottees and <br /> <br />acres by class groups are shown in table 2 (p. 4); curves showing these relation- <br /> <br />ships are presented on figure 2 (p. 39). Figure 2 (A) shows number of allottees <br /> <br />having individual acreages less than any selected amount, and figure 2 (B) shows <br /> <br />number of allottees whose total acreage is less than selected amount. To illu- <br /> <br />strate use of curves: suppose it is wanted to know how many allottees have <br /> <br />acreages less than 100, then from 100 on the horizontal (A) scale of figure 2, go <br /> <br />vertically to the (A) curve, then horizontally to left and read the answer, 320, <br /> <br />on the vertical scale; to find the total acreage of these particular 100 allottees, <br /> <br />find 320 on the vertical scale, go horizontally to curve (B), then vertically <br /> <br />downward and read the answer, 12,200 acres, on the horizontal (B) scale. The <br /> <br />number of allottees and acreage by river "reaches" and by counties are also listed <br /> <br />in table 2. <br /> <br />A classification of allottees, showing number of allottees and acreage of <br /> <br />those diverting directly from the Rio Grande, and of those receiving water from <br /> <br />a river diverter, is presented in table 3 (p. 5). Name, reach and acreage of all <br /> <br /> <br />districts, by districts and by reaches, is shown in table 4 (p. 6). <br /> <br />Summary At time of signing of the Treaty in 1945, there were 550,000 acres <br /> <br />of land declared cultivated in the Lower Rio Grande Valley. A gradual increase <br /> <br />in acreage to 600,000 took place from 1945 to 1954, then in the next three years <br /> <br />acreage increased to about 780,000, where it remains today. <br /> <br />The greatest number of allottees are in the size class of 26 to 100 acres, <br /> <br />and the greatest acreage is in class of 30,000 to 40,000 acres. Most acres are <br /> <br />in Hidalgo County and the largest number of allottees are in Cameron County. Starr <br /> <br />County has the lowest acreage and Willacy County the fewest allottees. Eighty- <br /> <br /> <br />three percent of acreage is watered by direct diversion from Rio Grande. Eighty <br /> <br />percent of the land is in organized districts. <br /> <br />': '. r, '.-, <br />V '"i':;;... j .J <br />