ON THE MAGNETIC QUALITIES OF IRON. 
1013 
Fi^. 21. 
Curves of |HdI and B. Collected results. 
For the sake of comparison with these various specimens of Iron we add here the 
values of JH(iI (copied from ‘Phil. Trans.,’ 1885, p. 556) obtained in tests made in 
Japan of a piece of soft iron wire. The method used in the Japanese tests differed 
from our present method ; the specimen was a single straight piece, long enough to 
be practically endless, and its magnetism was changed slowly and was measured by a 
magnetometer. We have numbered these old tests IX. for convenience of reference. 
