612 Prof. Richardson and Mr. Lownds on the Magnetic 





















Fig 



. 3. 









































































































H = 



M 



A 









^ 



=^i 



%- 





























A, 













IT 































*■ 



fr=S4£2 



















1 









































K 







































\ 



N, 



^ 



\ 



































^x 





N 



o 

















,B 

















/ 



r\ 







% 



S\\ 



























/ 



<\ 



/'' 



V if 



V. 







Av 



























/ 



J' 





(J 









\< 

















H = 



34 



^ 



^ 



^ 



/ 







^ 



^ 









i-'i \ 









































\a 













•&= 





























W 





































\ 



\\\ 



w 







































\*\ 



\; 







































\\ 



k\ 



























HP" 

















V\\ 

























T 

























c 







lOo 





2 



00 





3oo 





4 



00 





500 





6 



30 





700 





Data. 



H. 



583° C. 



544° C. 



501° C. 

 B. 



471° C 

 B. 



454° C. 



428° C. 



B. 



B. 



B. 



B. 



8-20 



982 



1757 



2084 



2204 



2257 



2336 



690 



912 



1686 



2013 



2133 



2186 



2265 



5-25 



823 



1615 



1925 



2027 



2080 



2159 



3-84 



735 



1527 



1828 



1912 



1956 



2044 



2-GO 



646 



1403 



1686 



1788 



1832 



1885 



1-33 



540 



1314 



1580 



1646 



1681 



1743 



•59 



487 



1252 



1492 



1558 



1584 



1637 







451 



1102 



1358 



1425 



1460 



1469 



-•59 



345 



1075 



1261 



1327 



1345 



1389 



-1-33 



204 



872 



1013 



1080 



1071 



1089 



-2-60 



-62 



243 



- 173 



- 434 



- 540 



- 593 



-3-84 



-239 



- 642 



-1181 



-1372 



-1460 



-1496 



-5-25 



-469 



-1226 



-1659 



-1797 



- 1867 



-1920 



-6 90 



-770 



—]590 



-1943 



-2C62 



-2115 



-2186 



-820 



-982 



-1757 



-2084 



-2204 



-2257 



-2236 



