202 DR. S. W. J. SMITH AND ME. J. GUILD: A THEEMOMAGNETIC STUDY OF 



These observations may be compared with those of fig. 3, described in 3, which 

 were obtained with the same steel in a field of 50 C.G.S. units. The temperature 





675 



775"C 



of rapid loss of magnetisation is exactly the same as before, but the beginning of the 

 transformation is much more clearly seen in this weaker field. The temperature 



