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Map of storm orientations per sub-region. Map of sub-regions. Map of isohyetal orientations east of tre 105th meridian. Tracking chart of Hurricane Agnes - June 19-23, 1972. Frontal positions on October 5, 1910. Map of "ratios of 10mi2 to 20,OOOmi2 6-hr storm rainfall for selected sub-regions." Depth-Area chart: "Adopted smoothed average ratios of greatest storms depth-area values." "Example of6-hr within storm (D-A-D) curves for 37* N: 89* W." "Nomogram for determining isohyetal values in percent of greatest 6- hr PMP increment." Same nomogram for 2nd and 3rd greatest increments. Depth-area curves for drainage centroid at 33*55'N: 92*40'W. Rough draft of "Appendix - Alternate Distribution Methods." 20) Item #13 - Folder #1 Copies of mass curves, DAD tables for storms of HMR 52 including 1972, Hurricane Agnes centers. 21) Item #13 - Folder #2 Working papers - maps, curves, DAD for Hurricane Agnes, June 18- 25, 1972. 22) Item #14 - Folder #1 "Test of Grids" at various storm centers (Lat / Long indicated) including within basin PMP table. "Process to get isohyetal nomograms." Numerous depth-duration, within basin curves from HMR 52. 23) Item #14 - Folder #2 Working papers, computations, region maps, controlling storms list including 1927, 1932, 1935, 1955, 1972, 1942; storm location maps, within basin DAD curves - analysis. 24) Item #15 - Folder #1 Map of CC basin "A report on the Maximum Possible Precipitation over the CC Basin" including curves for 1921 and 1935 Penrose and CC storms. Weather maps for 1921 and 1935 storms including isentropic charts and horizontal cross-section; mass rainfall curves for 1921. Isohyetal patterns for 1921 and 1935. 25) Item #16 - Folder #1 "Report on storm of27 May - 2 June, 1935 (MR3 - 28) -Republican River Basin, Colorado, Kansas, Missouri, and Nebraska."