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CHAPTER VI.

Quantities of Materials.

I. Volumes from Cross Sections.

3. Volumes of Continuous Prismoids.

b. Volumes from Field Notes direct.

Advantages of the Method.

The method about to be described has not only all the advantages possessed by the first method but the further advantage of a very large saving in time and labor due to the fact that the method does not require that any of the cross-sections shall be plotted: it is also evident, that owing to this fact the possibility of error due to the multiplying of lines in the superimposed plotted cross-sections is entirely eliminated and that any number of prismoids can be measured by one operation with exactly the same degree of accuracy as can a single prismoid. The value of these advantages is self-evident and makes this method by far the most accurate and rapid of execution of any yet devised, while being at the same time so simple and so easily executed as to require but little experience to employ it with the greatest confidence and facility.

The method is exactly the same as the first both mathematically and in execution except that unlike the first method the cross-sections are not plotted. All factors for both methods are the same so that the table headed “VOLUMES OF CONTINUOUS PRISMOIDS”  being Table 8 is used for both.

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