+------------------------------+-----------+----------+-------+--------+ | | | Maximum |Cu. ft.| Annual | | | Drainage | recorded | /sec. | amount | | River. | area, in | flow, in | per | of | | | square | cu. ft. |square | rain- | | | miles. | per sec. | mile. | fall. | +------------------------------+-----------+----------+-------+--------+ | Santa Catarina, Monterrey, | | | | | | August 27th, 1907 | 544 | 235,000 | 432 | 22 | | Estanzuela, near Monterrey, | | | | | | August 28th, 1909 | 3.5 | 2,900 | 825 | 25 | | Tansa, India | 52.5 | 35,000 | 666.7 | 101 | | Krishna, India | 345 | 118,000 | 342.6 | 258 | | Coquitlam River, Vancouver | 100 | 12,000 | 120 |147-189 | | Sweetwater, Cal. | 186 | 18,150 | 99 | ... | | Delaware, Lambertville, N. J.| 6,820 | 250,000 | 36.5 | 45 | | Colorado, Austin, Tex. | 37,000 | 123,000 | 3.3 | 24.5 | | Ohio, Cairo, Ill. | 214,000 | 700,000 | 3.3 | 54.9 | +------------------------------+-----------+----------+-------+--------+ Table 18, compiled by the writer, shows how very extreme the floods of 1909 were compared with those on other rivers, while those of 1910, referred to by Mr. Saucedo, although not so great, would appear to have reached a rate of flow of about 300 cu. ft. per sec. per sq. mile of the drainage area. The writer agrees with Mr. Saucedo that in the semi-arid regions of Mexico and the Southern States, and also in India, the possibility of these abnormal floods is an important consideration in the design of hydraulic works. * * * * * Changes To This Document Transcriber's Note: The table of contents has been added. Blank pages have been deleted. Illustrations may have been moved. Discovered publisher's punctuation errors have been corrected. Some wide tables have been re-formatted to narrower equivalents with some words replaced with commonly known abbreviations and possibly a key. Some ditto marks have been replaced with the words represented. In addition, the following changes or corrections were made: