61) devised a measuring machine which combines the rapidity of the glass-scale micrometer with the accuracy of the spiderline micrometer and simplifies the reductions of the observations at the same time.
This essentially simplifies the treatment of such functions.
The assumption n=s/R simplifies the adiabatic equation, but the value n=3.5 gives So =0.497 at zero pressure, which was the value found by Callendar experimentally at 108° C. and 1 atmosphere pressure.
He thus undoubtedly simplifies his system, and avoids the doubtful inferences from nature and Scripture in which Paley's position is involved; but this gain is dearly purchased.
It simplifies the theory, and gives a possible relation between the constants, but it does not appear to remove the complication above referred to, which seems to be inseparable from any conduction theory.