Properties of the Alloys of Cast-iron and Aluminium. 617 

 Observations during heating, indicated on fig. 3 thus, Q. 



H=82. 



H=3-43. 



T. 



B. 



T. 



B. 



16-5 



2938 



165 



10 U 



114 



3015 



117 



1175 



186 



3117 



184 



1369 



251 



3200 



251 



1516 



280 



3302 



280 



1720 



307 



3358 



309 



1877 



331 



3367 



332 



1912 



360 



3311 



362 



1998 



377 



2951 



378 



1757 



387 



2664 



389 



1583 



398 



2534 



398 



1517 



436 



2105 



441 



1452 



487 



2220 



481 



1249 



555 



1633 



559 



416 



660 



268 



657 



139 



669 



250 



670 



148 



684 



166 



683 



111 



700 



65 



703 



37 



711 



37 



711 



18 



Observations during cooling indicated thus 



•-onr.£. °. 



H= 



8-2. 



H=3-48. 



T. 



B. 



T. 



B. 



(588 



Ill 



683 



102 



630 



240 



630 



129 



628 



222 



628 



120 



614 



250 



614 



121) 



593 



407 



590 



194 



577 



758 



578 



240 



560 



1106 



560 



361 



528 



1952 



527 



740 



500 



2201 



502 



1045 



444 



2442 



444 



1443 



401 



2531 



402 



1489 



394 



2553 



394 



1535 



386 



2682 



387 



1554 



376 



3062 



376 



1813 



360 



3311 



360 



1970 



300 



3340 



293 



1767 



298 



3367 







The curves obtained from these last two sets of readings 

 approximate closely to one another throughout the greater 

 Phil. Mag. S, 6. Vol. 1. No. 6. June 1001. 2 S 



