A laboratory manual of anthropometry / by Harris H. Wilder.

  • Wilder, Harris Hawthorne, 1864-1928.
Date:
[1920], ©1920
Catalogue details

Licence: Public Domain Mark

Credit: A laboratory manual of anthropometry / by Harris H. Wilder. Source: Wellcome Collection.

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    decimal places used go beyond the error of two consecutive measure- ments, there is absolutely no value in carrying them out. If, as an illustration, we find that in a certain skull measurement, the results ob- tained by different operators, or by the same operator at different times, do not agree with each other to within 0.5 mm., it is simply time lost to attempt to carry out the individual measurements beyond one decimal place. Especially in the case of measurements of the living, where the operator has to consider, not only his own degree of accuracy, but also the slight involuntary changes of position of the subject, there are certain of the longer measurements where one cannot hope to be accurate within a whole centimeter, and where attention to differences of 2-3 millimeters would be of no possible avail. ANTHROPOMETRIC INSTRUMENTS The instruments employed in anthropometry may be grouped accord- ing to form and use, as follows: I. Instruments for measurement 1. Linear measurement calipers craniometer pelvimeter slide compass anthropometer rod compass osteometric board 2. Girths and arcs tape-measures 3. Angles goniometer (stationary) goniometer (for attachment) special types of goniometer 4. Torsion (shaft of long bones) parallelograph 5. Volumetric instruments 6. Scales for recording weight II. Instruments for holding and orienting skulls and other bones simple types of craniophore cubic craniophore of Martin osteophores combined craniophore and osteophore of Wetzel III. Instruments for drawing and delineating dioptograph of Lucae perigraph of Lissauer diagraph of Martin stereograph of Broca I. Instruments for Measurement The two most convenient types of instrument for measuring linear distances as defined by two points forming their termini are: