XXXII. On magnetization in strong fields at different temperatures

§ 1. IIYTRODUCTORY.--Prof.Rowland, in summarizing his well-known magnetic researches (1873), thus carefully expresses himself :--" (7) Iron, nickel, and cobalt all probably have a maximum of magnetization, though its existence can never be entirely established by experiment, and must always be a matter of inference; but if one exists, the values must be nearly as follows at ordinary temperatures.Iron when !B = 17500 or whet ~=1390; nickel when !B=6340 or when ~=494; cobalt when !B= 10000 (?) or when ~---800 (?)" ~f.Until lately, nothing decisive was done in the matter, apart from occasional announcements of ~ having been found > 1390 for iron; and Rowland's values had to be adopted by experimenters, including myself (Phil.Mag.Nov. 1887)$.Mr.