186 



Mr. Carl Barns on the Fusion 



Table II. — Contraction of Diabase. Series III. 

 Z = 25*466 centim., X =l"424 centim., r = *75 centim. 



0J. 





Apparent 



Volume- 









■ 



o, 



Mean 



volume- 



expansion 



dv/v . 



Mean. 



Time. 



Remarks. 



»S- 



e. 



expansion 



of the 



cv/v . 











of Rock. 



tube. 











°c. 



°0. 



X 10*. 



xio* 



xio 4 . 





Minutes. 





1360 



1386 



452 



358 



810 



•0811 







Liquid. 



1396 





454 



(356) 



812 



(•0809) 







1403 









(808) 

 (810) 









1286 



1300 



437 



340 



777 



•0778 



23 



Liquid. 



1304 





438 



(334) 



778 



(•0772) 







1311 









(771) 



(772) 









1163 



1166 



406 



297 



703 



•0704 



53 



Sticky. 



1167 





409 



(300) 



706 



(•0707) 







1168 









(706) 

 (709) 









1097 



1093 



376 



270 



646 



•0646 



86 



Very sticky. 



1093 





333 



(281) 



603 







To be drawn 



1089 









(657) 

 (614) 



(•0657) 





out in threads. 

 Eventually 

 solidifying. 



1102 



1095 



14 



273 



288 



•0287 



111 



Solid. 



1095 





13 



(282) 



286 



(•0296) 







1088 









(296) 

 (295) 









929 



896 







211 



211 



•0212 



157 



Solid. 



897 





o 





(213) 









863 

















461 



468 



-4 



81 



77 



■0079 



185 



Solid. 



433 











81 









510 



















20 















•0000 



Next clay. 



Cold. 



Eock, mean actual expansion, solid, 0°-1000° . . 



liquid, 1100°-1500° . 



,, contraction on solidification (1094°) . . . 



J Eock, mean apparent expansion, solid, 0° 1000° . . 

 | „ „ „ „ liquid, 1100°-1500 c 



J Tube, mean volume-expansion below 1000° . . . 



\ „ „ „ „ above 1100° . . . 



•0000250 



•0000470 



■0390 



•0000007 



•0000205 



•0000240 



•0000265 



18. Contraction of Diabase. Series TV. Tables anal Chart. — 

 The data of the last series of experiments (made on October 

 21, 1891) are given in Table III. Two complete sets of 

 results correspond to each step of temperature. 



