
IN PRACTICAL ASTRONOMY, SPECTROSCOPICALLY EXAMINED. 825 
11. Judson’s MAU VE-RED—continued. 


Solution = 5,57 strength. Slightly dulls out the yellow, but leaves all the other 
colours nearly pure. 


Wave-number | Colour Region by 



Intensity. oe in Brit. Inch.| Wave-number. 
Light begins , 0 25°32 34 892 | Crimson Rep 
Maximum Rep Light . 6 25°65 39 170 | ORANGE 
Ends : 0 25°89 41 964 | AMBER 
Light begins again 0 26°94. 52 002 | GLAuUcoUS 
Maximum Vio.et Light 4 27-63 57 339 | INDIGO 
End ail 0 28°43 62 559 | LAVENDER 


Solution = 33, strength. 


25°32 34 892 | Crimson RED 
25:57 38 226 | SCARLET 
25°72 40 016 | AMBER 
28°05 60 049 | LAVENDER 
Light begins ‘ 
Maximum Rep Light . 
Ends . : : 
Ghost of a violet band 
FS =] 8) © 


Solution = 35 strength. 


Light begins. ; : : : 0 25°30 34 626 | Crimson Rep 
Maximum Rep Light . : ; : : 2 25°50 37 411 | ScaRLEr 
Ends . ‘ ‘ ‘ : ; : 0 25°58 38 344 | SCARLET 

12, CLARET WINE=RUBY RED. 
Shows one narrow red band. 


Wave-number | Colour Region by 


Intensity. | 7. in Brit. Inch. | Wave-number. 
Light begins : ° , : ; 0 25°26 34 095 | Crimson RED 
Maximum Licur ' : : ; ; : 3 25°50 37 411 | ScarLer 
Endall_ : ; f : : . 0 25°69 39 651 | ORANGE 

VOL. XXVIII. PART III. Ove 
