![]() He now says that these tables form part of a larger work entitled “Properties of Steam”, in which the theory of steam and experimental methods of investigation are more fully discussed and illustrated. Callendar is undoubtedly the highest authority on this subject. ![]() We then gave reasons for the suggestion that perhaps such experimental results as were available scarcely justified the use of the Callendar method, in spite of the fact that Prof. Smith and Warren calculated and published tables which were discussed in NATURE of April 3, 1913. Mollier, of Dresden, published tables and corresponding curves calculated by this method, and these were republished in England by Ewing in 1910. If his formula is correct, it is possible to tabulate all the properties of steam required in engineering calculations in such ways that the numbers are more consistent with one another than any hitherto published. Callendar showed the use of a simple empirical formula connecting the pressure, density, and temperature of steam. IN his Royal Society paper in 1900 and in his article on Vaporisation in the “ Encyclopædia Britannica “ of 1902, Prof. ![]()
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