ON COMPOSITE PHOTOGRAPHY AS APPLIED TO GKANI0L0(;Y. 



115 



Table I. — Showing meaaurements, in cubic centimeters, of twenty-five skulln not varnished. 



Table II. 



-Showing measurements in cubic centimeters of ten varnished sliuUs, compared with measurements of the same 



unvarnished. 



Sum of differences, 45.10. 



Average variation in nnvarnished skulls, 4.5. 



Average variation in varnished skulls, 1, 



