the Wave-length within a Refractive Medium. 337 



Table III. (continued). 



Acetone. 

















Specific 



Temp. 



Sp. Grrav. 



Index A. 



Index H. 



Angle A. 



Limit. 



Mol. dist. 



Limit. 



t. 



d. 



f U A . 



H-n- 



0a- 



v. 



h. 



v-1 



d ' 



*25-5 



0-8117 

 at 15° 



1-3540 



1-3706 



9 25 6 



1-3479 



•024733 



42860 









Butyric Ether. 







*23-0 



0-8778 

 at 20° 



1-3850 



1-4669 | 9 24 1 1-3778 

 Allyl Alcohol. 



•027995 



43039 



230 



0-8563 



1-4054 



1-4289 |10 44 55| 1-3695 



•025438 



46304 









Allyl Sulphide. 







110 



0-8544 



1-4531 



1-4811 |11 30 40| 1-4434 







51837 







Ethyl Thiocarbamide. 







180 



| 1-0030 



1-5040 



1-5477 1 13 13 | 1-4890 



1 



| 48794 







Orthobromotoluine. 









] 1-4192 



| 1-5502 



1-5981 | 14 3 50 1 1-5299 



1 



1 37340 



C( 



)mpare th 



is with be 



azil chloride above T5160 

 Isobutyl Chloride. 



1 



| 46592 



19-0 



1 0-8626 



| 1-3939 



| 1-4111 | 8 57 30 1 1-3882 

 Isobutyl Iodide. 



1 



| 45004 





| 1-5982 



| 1-4874 



| 1-5240 f 12 53 | 14749 

 Mercuric Methyl. 



1 



| 29717 



30-0 



| 2-966 



| 1-5229 



| 1-5683 | 14 5 | 1-5076 

 Bromopicrin. 



1 



| 17365 



130 



| 2-816 



| 1-5736 



/J.D 



| 1-5831 | 14 | 1-5246 



1 



| 18612 



* It will be seen that in both these d is too great. 



Table IV. 



Substance. 



Lower 

 Index. 



Upper 

 Index. 



Angle A . 



Limit. 



Limiting 



Wave-length. 



Selenium \ 



Solid f 

 Sulphur \ 



Solid r 

 Phosphorus \ 



/Xa. 



2-653 



1-9024 



flA. 



2-1059 



2-980 

 1-9527 



JUE. 



2-1442 



0A. 



44° 9' 0" 

 20° 30' 0" 

 20° 40' 0" 



2-1353 

 1-8621 

 20611 



5295-7 

 2663-8 



2683-8 



