Transparent Bodies by the action of Magnetism. 497 



Experiments on heavy Glass, No. 2. 

 III. IV. 



White light. Thickness, 37-2 

 rnillims. 



R. 



Q. 



Mean 



2-88 



White light. Thickness, 26 

 millims. 



F. 



Q. 



Experiments with common Flint. 



V. 



White light. Thickness, 43-3 millims. 



F. R. Q. 



148-00 



123-81 



92-75 



4 40 45 

 4 2 30 

 2 57 15 



Mean 



1-90 

 1-96 

 1-91 

 1-92 



Experiments ivith Bisulphide of Carbon. 



VI. 



White light. Thickness, 44 

 millims. 

 F. R. 



150-37 



112-87 



94-19 



6900 



16 15 

 37 30 

 55 

 54 



Q. 



2-50 

 2-46 

 2-49 

 2-52 



Mean 



VII. 



White light. Thickness, 31 

 millims. 

 F. R. 



149-62 



113-5 



93-5 



4 19 30 

 3 23 

 2 34 45 



Mean . 



Q- 



1-73 

 1-78 

 1-65 



T72 



. 2-49 



VIII 



Homogeneous indigo light. 



F 



R. 



148-5 10 47 



124-5 9 29 30 



94-4 7 7 30 



Mean . . . 

 Phil. Mag. S. 4. No. 62. Suppl. Vol. 9. 



Thickness, 44 millims. 

 Q. 



4-37 

 4-57 

 4-53 



4-49 



2K 



