Abstract
The Use of Multiple Measurements in Taxonomic Problems
When two or more populations have been measure in several characters,
, special interest attaches to certain linear functions of the measurements by which the populations are best discriminated. At the author’s suggestion use has already been made of this fact in craniometry (a) by Mr. E. S. Martin, who has applied the principle to the sex differences in measurements of the mandible, and (b) by Miss Mildred Barnard, who showed how to obtain from a series of dated series the particular compound of cranial measurements showing most distinctly a progressive or secular trend. In the present paper the application of the same principle will be illustrated on a taxonomic problem; some questions connected with the precision of the processes employed will also be discussed.