Page:Carroll - Notes by an Oxford Chiel.djvu/20

10 that the 's were all on one side. However, as repeated trials produced the same irrational result, the process was finally abandoned.

This was a modification of &apos;the method of finite Differences,' and may be thus briefly described:— Let E = Essays, and R = Reviews: then the locus of (E + R), referred to multilinear coordinates, will be found to be a superficies (i.e. a locus possessing length and breadth, but no depth). Let ' = novelty, and assume (E + R) as a function of '.

Taking this superficies as the plane of reference, we get—

Multiplying by P, EBP = HPL.

It was now necessary to investigate the locus of EBP: this was found to be a species of Catenary, called the Patristic Catenary, which is usually defined as 'passing through origen,