196 Dr. C. Fromme on the Magnetism of Steel Bars, 



Table II. 



Vertical Component. 



Ellip- 

 soid. 



I. 1. 

 2. 



3. 



4. 

 5. 



II. 1. 



Date of 

 observa- 

 tion. 



Gh 



*Feb, 11. 

 March 11. 



Fob. 11. 

 March 2. 

 March 6. 



*Feb. 12. 

 March 2. 

 March 6. 



*Feb. 12. 

 March 5. 



*Feb. 12. 

 March 5. 



20560 528076 

 19894 159974 



40080161767 

 3910811-9152 

 3906611*7770 



G9133J 130048 

 67269ilO-393(i 

 67336 10-4720 



121205 

 11 8976 



128G15 

 126230 



5. 



Feb. 17. 10478 

 March 11. 18487 

 March 12. 18543 



*Feb. 17. 



March 11. 

 March 12. 



*Feb. 17. 

 March 1 1 . 



*Feb. 13. 

 *Feb. 18. 

 March 11. 



*Feb. 13. 

 *Feb. 18. 

 March 11. 



3838S 

 37648 

 36738 



63603 

 63073 



110936 

 109107 

 109113 



109893 

 110178 



108827 



10-8965 

 9-8564 



9-2420 

 86826 



0-4216 

 61368 

 6-1393 



7-8257 

 6-8163 

 5-8473 



6-6521 



5-9333 



6-9167 

 6-4903 

 6-4917 



602(57 

 60674 



5-8772 



00(5265 

 0-20034 



0-29970 

 0-39702 



0-40124 



0-47583 

 0-57958 

 0-57583 



0-76583 

 0-83108 



1-26561 

 1-32220 



0-31173 

 0-50396 



0-50379 



0-5725(5 

 0-641157 

 073335 



0-87750 

 0-96014 



1-07686 

 115408 

 1-15390 



1-62438 

 1-65407 

 1-68666 



Horizontal Component. 



Ellip- 

 soid. 



I. 1. 



II. 1. 



5. 



Date of 

 observa- 

 tion. 



Feb. 25. 

 March 2. 



Feb. 26. 

 March 2. 



Feb. 26. 

 March 2. 



*Feb. 19. 

 March 2. 



*Feb. 19. 

 March 2. 



Feb. 26. 

 March 1. 



Feb. 26. 

 March 1. 



Feb. 27. 

 March 1. 



Feb. 27. 

 March 1. 



Feb. 27. 

 March 1. 



(!. 



k. 



20272 26 7246 

 2009120-2821 



40202' 16-9 155 

 40516 191414 



68522 

 69232 



117364 

 122182 



124688 

 130219 



19691 

 19601 



38665 

 37950 



63397 

 63100 



110845 

 111046 



109223 

 109747 



12 0320 

 131742 



9-2002 

 11-4105 



8-3458 

 9-64 d7 



12-25(57 

 11-4126 



8-2729 

 7-1993 



65477 

 6-4014 



6-8945 

 69437 



5 9322 

 60060 



005286 



006904 



12431 



0-0879? 



0-2206: 

 0-2035! 



0-3799. 

 0-3189^ 



0-5877, 

 0-5310 



0-1158! 

 01239: 



0-2359! 

 0-2(561; 



0-3844! 

 0-39 13( 



04774! 

 0-4750( 



07255; 

 0-72001 



It results from the two values corresponding to each ellip- 

 soid, that k diminishes zoith increase of the magnetizing force, 

 or that the latter increases faster than the magnetic moment. 



The same follows if the ellipsoids of one sort are regarded 

 as comparable, from the two series of values of sort I. obtained 

 by the vertical and horizontal components, not so well (on 

 account of II. 4) from the second series of values of sort II., 

 but not from the first series of the latter. 



The course of the magnetization-function k under the action 

 of feeble forces which leave no residual magnetism behind, can 

 therefore be represented as follows : — 



Starting from a large initial value, k diminishes as the mag- 

 netizing force increases, at first quickly, then more slowly, and 

 very soon reaches a minimum, the coming-in of which is depen- 



