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Volumes           VOLUMES OF GRADING AND DREDGING          No. 9
Scale Vernier Unit Test Plate Ott's K.&E., No. 4230 Coradi's Compensating  
No. Linear Area Volume Actual Relative Area Volume Reading Setting Constant Setting Constant Setting Constant Setting Constant
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
No. In. Ft. Sq. In. Ft. Cu. Yds. Sq. In. Cu. Yds. Sq. Ft. Cu. Yds. Units ½ mm Units ½ mm Units ½ mm Units ½ mm Units
  1 1 = 4 1 = 16 1 =       .395062 .01265   .005     248.0       6.12236 1224.7 268.8 17803 89.3 18321 268.9 23601 _ _ _ _ _ _ _ _
  2 1 = 5 1 = 25 1 =       .617285 .0162   .01     387.5       9.5679   956.79 337.6 17277 14.7 18242 344.0 22525 _ _ _ _ _ _ _ _
  3 1 = 6 1 = 36 1 =       .888889 .01406   .0125     558.0     13.7775 1102.2 297.1 17519 59.7 18174 298.8 22994 _ _ _ _ _ _ _ _
  4 1 = 8 1 = 64 1 =     1.580249 .01265   .02     992.0     24.4938 1224.7 268.8 17803 89.3 18321 268.9 23601 _ _ _ _ _ _ _ _
  5 1 = 10 1 = 100 1 =     2.469140 .0162   .04   1550.0     38.2716   956.79 337.6 17277 14.7 18242 344.0 22525 _ _ _ _ _ _ _ _
  6 1 = 12 1 = 144 1 =     3.555561 .01406   .05   2232.0     55.1100 1102.2 297.1 17519 59.7 18174 298.8 22994 _ _ _ _ _ _ _ _
  7 1 = 16 1 = 256 1 =     6.321198 .01265   .08   3968.0     97.9800 1224.7 268.8 17803 89.3 18321 268.9 23601 _ _ _ _ _ _ _ _
  8 1 = 20 1 = 400 1 =     9.876560 .0162   .16   6200.0   153.0842   956.79 337.6 17277 14.7 18242 344.0 22525 _ _ _ _ _ _ _ _
  9 1 = 24 1 = 576 1 =   14.222246 .01406   .20   8928.0   220.4412 1102.2 297.1 17519 59.7 18174 298.8 22994 _ _ _ _ _ _ _ _
10 1 = 30 1 = 900 1 =   22.22226 .0162   .36 13950.0   344.4444   956.79 337.6 17277 14.7 18242 344.0 22525 _ _ _ _ _ _ _ _
11 1 = 40 1 = 1600 1 =   39.5062 .01265   .50 24800.0   612.236 1224.7 268.8 17803 89.3 18321 268.9 23601 _ _ _ _ _ _ _ _
12 1 = 50 1 = 2500 1 =   61.7285 .0162 1.0 38750.0   956.790   956.79 337.6 17277 14.7 18242 344.0 22525 _ _ _ _ _ _ _ _
13 1 = 60 1 = 3600 1 =   88.8888 .01406 1.25 55800.0 1377.75 1102.2 297.1 17519 59.7 18174 298.8 22525 _ _ _ _ _ _ _ _
14 1 = 80 1 = 6400 1 = 158.0249 .01265 2.0 99200.0 2449.38 1224.7 268.8 17803 89.3 18321 268.9 23601 _ _ _ _ _ _ _ _
Note.-- Vertical distance between contours is always taken as 1 foot.

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