Properties of the Fe 



141 



tals. By careful observation, curves were also obtained showing 

 that the absorbed beat of fusion was distributed over this interval. 

 From the experimental standpoint a substance of this kind 

 can hardly be said to have a melting point but passes gradually 

 from crystalline to amorphous at temperatures which can be 



2900 



2800 



2700 



2600 



2500 



>2400 



2300 



Crystals 



Glass 



An AbiAn 5 AbjAn^ AbiArit Ab 2 Anx Ab 3 An : 



An 100 84-1 68-0 51*5 34*7 26'1 



Ab 15-9 32-0 48*5 65'3 73"9 



Percentage Composition. 



Ab 







100 













. 











Fic 



c. 2 



1. 





















,4200 

























- 































































.4100 



































































































































.4000' 













































.3900 



































































































































.3800 













































.3700 





















e_ 



































































3600 

























































































.3500, 













































Glass 



Crystals 



An AbiAn 5 AbiAn 2 



An 100 84-1 68-0 



Ab 15-9 32*0 



Percentage Composition. 



Ab x An] 

 51-5 



48-5 



Ab 2 An, 

 34-7 

 65 k 3 



Ab 3 Anj 

 26-1 



Ab 







100 



Fig. 22. 



Am. Jour. Sci.— Fourth Series, Yol. XIX, No. 110 

 10 



-February, 1905. 



