Phil. Mag. Ser. 6, Vol. 7, Pl. T. 
Tic, 3. Fie. 6. 
Curves I.,II., and I1I.—Hysteresis in Rowley Blue No. 2, 
Rowley Dolerite No. 2, and Dattenberg No. 1. 
K (ouscephbicely) 
: os | eared 
Curves IX., X., and XI.—Dattenberg bars No. 1 (2nd & 3rd heatings); No. 2 (Ist heating.) 
020 40 60 80 100 9 6 8 CO 2 4 6 8 3002 4 6 8 4002 4 6 8 502 2 6 8 6002 4 6 8 M02 4 6 8 800 



















































































{00 200 300 400 500 600 700 Bode 
TEMPERATURE. 







Ere, 7. 
Curves XII.—Dattenberg, Nos. 3,4, &5. Curves with rising temperature only. 






















300°C, 
TEMPERATURE 


Fie. 4. 
Curve IV.—Rowley Blue No.1. Tenth heating. 

Fre, 8. 
Curves XIII. and XIV.—Rowley Dolerite No. 1 (1st heating) and No. 2 (2nd heating). 

















TEMPERATL URE. 
















| 0 20 40 60 60 1002 4 6 Go dal & 6 8 3002 4 6 84002 4 6 B Be 4 6 8 6002 4 6 8 7002 4 6 a 800c 



: I | TEMPENATORE 
) 
K. 2 
; Se el c= BRS 
. see : GGeSee 
Curves V., VI., VII., VIII.—Rowley Blue No. 2, Ist, 3rd, 5th, & 6th heatings. font Cle eae 
Recent oni nee a Wel lclcinne 8 solisys @ be secrevinve: 3 Cee 4 6 8 6002 Jee GEES. 05700) 
ima 
































