I AM grateful to Prof. Satterly for directing attention to the discrepancy. Accepting 5 × 4 = 20 as the molar latent heat of evaporation of helium, the value 31.3 calculated with the aid of the ...
THE letter of Dr. J. Newton Friend in NATURE of December 26, 1936, on this subject raises interest in his equation. I have tested it with the following results: As many know, the variation of the ...