224 



REPORT — 1891. 



IROX (Aec Specttivm')— continued. 



MUller and 

 Keiupf 



i Difference | 

 I J^owland , 

 — Anffstrom 



l-3f 



Reduction to 

 Vacuum 



1-22 

 1-29 



10-1 

 10-2 



0-93 

 0-92 



1-26 



0-93 

 1-00 



0-44 

 0-34 



0-85 



0-(U 



014 



10-2 

 10-3 



0-30 



0-82 

 1-68 



1-84 



