356 
MR. C. CHRBE ON THE EFFECTS OF PRESSURE 
stronger fields are g-rouped into two sets, and tlie average effects for each set alone are 
given. 
In like manner the results of the experiments of type M are given in Table VII., 
and those of type N in Table VIII. In these, too, the cyclic effects of pressure were 
unfortunately not observed in the weakest fields. In the six wea.kest fields of 
Table VII. the value assigned to is the residual magnetisation when only one 
pressure cycle has been applied, while in the seven weakest fields of Table VIII. the 
value assigned it is the residual left on the removal of the pressure existing during 
the break of the current. The corresponding results in the last columns of these 
tables are consequently all unduly large. In the strongest fields average results alone 
are given as in Table VI. 
The results of Tables VI., VII., and VIII. supply the data from which the curves 
h, c, d, respectively, of figs. 9 to 15 (Plate 16) are drawn. 
Table VI. 
3/. 
/ 
A-'p . 
First 
“ on.” 
Next 
“ off.” 
Cyclic 
“on”-“off.” 
Ratio of 
Shock-effect of 
first “ on ” 
to 3f. 
Ratio of 
Shock-effect of 
next “ off” to 
Shock-effect of 
first “ on.” 
Sa -t-3i . 
2-6 
1'26 
•48 
4-2 
2-43 
•58 
5'6 
5-0 
•89 
- 30 
- -15 
-•60 
■05 
•3’7 
8-9 
8-4 
•95 
4-7 
•29 
•56 
•06 
•40 
11-5 
107 
•93 
5-8 
•29 
•05. 
•43 
18-0 
24-4 
1-36 
8-5 
■95 
6 
•35* 
•11* 
■57* 
24-0 
327 
1-36 
10-7 
•87 
- -32 
•32 
•11 
•61 
35-0 
44-2 
1-26 
13-7 
•94 
•62 
•28 
•12 
•61 
46-7 
497 
1-06 
13-5 
1-00 
•49 
•26 
•11 
•05 
59-0 
57-3 
•97 
14-3 
•86 
•57 
•24 
•10 
•67 
74-8 
617 
•82 
14-4 
1-22 
•34 
■23 
•11 
•71 
93-2 
64-9 
•70 
109 
657 
•60 
122 
66-3 
•54 
133 
68-2 
•51 
> 15-2 
'85 
•53 
■22 
•09 
•72 
147 
68-0 
•47 
173 
68'5 
•40 
207 
687 
•33 
242 
70-2 
■29 
292 
70-;) 
•24 
353 
70 6 
•20 
5 14-1 
•69 
•49 
•19 
•08 
•To 
385 
71-4 
•18 
414 
711 
•17 
. 
* In the entries above this point, in absence of experimental data, the cyclic “ on ” — “ off" is neglected. 
Tims the resrilts above this point are not stricily comparable with those below. 
