. Automotive industries . ithmicmethod of charting is given by W. in his volume on GraphicMethods for Presenting Facts. Partof this is worth quoting here: The principles involved, Brintonsays, are the same as those embodiedin the slide rule. ... No matterwhat the location of the chart, if thelogarithmic spacing is used in the ver- ARLY PRODUCTION j I YEARLY INCREASE REGISTRATION I 5 EXCESS YEARLY PRODUCTION V//////A OVER YEARLY REGISTRATION >^>^_ 2UMULATIVE PRODUCTIONi^BB OVER REGISTRATION I9IS 1919 1920 Chart 7—Curve A shows the variation inregistration from year to year. Curv
. Automotive industries . ithmicmethod of charting is given by W. in his volume on GraphicMethods for Presenting Facts. Partof this is worth quoting here: The principles involved, Brintonsays, are the same as those embodiedin the slide rule. ... No matterwhat the location of the chart, if thelogarithmic spacing is used in the ver- ARLY PRODUCTION j I YEARLY INCREASE REGISTRATION I 5 EXCESS YEARLY PRODUCTION V//////A OVER YEARLY REGISTRATION >^>^_ 2UMULATIVE PRODUCTIONi^BB OVER REGISTRATION I9IS 1919 1920 Chart 7—Curve A shows the variation inregistration from year to year. Curve Bshows how the total production of carsvaried in excess of the registrations eachyear. As this excess is made up of newcar owners and repUcement owners, theincrease in registrations is due to new carowners, and the difference shows the oldcars which have been relegated to thescrap heap. The yearly production curveC shows the great falling off during thelast year of the war, with resultant in-crease the following 189365b xv, 1491000 Z Z. I 1644715 402656 ^ 2070500 735500 ZZZ 71215 1000 1200 1400THOUSANDS IbOO 1800 2000 2200 2400 Chart 8 is a barograph showing the relation between yearly pincrease in registrations, excess of production over of cars withdrawn since the period of automobiles began. Tat the end of the last-mentioned bar represents the number o^during that year. The standstill of the whole in plainly by the shortening of the brsenting cumulative productiondrawn, which disappears entirthat all the old cars in storageand made 191Snd the es barely able 1ough that year iduction. yearlyand total num-shaded portioncars withdrawnought <cept the bar repre-imber of cars with-s quantity, showinfun were gotten out 1438 AUTOMOTIVE INDUSTRIES THE AUTOMOBILE June 30, 1921 tical scale for curves, the angle of the upward or down-ward inclination is the same for all curves affected by thesame percentage of change. . The logarithmicscale permits the exhib
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectaeronautics, bookyear
