Show AREA OF DETAILED MAPPING Notwithstanding Interruptions by War Larger Amount Was Covered In Year of 1918 Prepared Prepare by tho the United States Department Depart Depart- I Department part part- ment of ot Agriculture Notwithstanding a R certain amount of ot Interruption due to war conditions Inthe Inthe In Inthe the work of the soil soli survey surrey carried on onby onby by the bureau of soils of the United States department of agriculture a larger area of at detailed mapping was done during the fiscal year 1918 than during the preceding year he tte area covered amounting to square quare il i P Used In Soli Soil Survey vey for Constructing Base Map miles Prior to 1918 1018 a total of square miles had been mapped so that the total area covered b by the detailed work of the survey at the close of June 30 1918 1018 was square miles That part of the United States lying within regions where the rainfall Is sufficient for crop crop production or where 1 water is available for Irrigation covers covers cov cov- ers approximately square miles The area mapped In detail during during dur dur- ing 1918 was equivalent to 22 per cent of this area the total mapped In detail de- de detail detail de de- tail to date 26 per cant cent and the total both detailed and work much of the latter area calling for tor no further work amounted to percent per percent percent cent of at It |