scholarly journals Ultra-Violet Light and Its Applications Including a Description of the Numerous Practical Applications Found for Ultraviolet Light and Fluorescence in the Industries, Sciences, and Arts

1943 ◽  
Vol 121 (3) ◽  
pp. 222
1917 ◽  
Vol 26 (6) ◽  
pp. 841-848 ◽  
Author(s):  
H. S. Newcomer

Typhoid bacilli are about one two-hundredth as sensitive to ultraviolet light of wave-lengths 2100 to 2800 Ångström units as is the photographic plate. This sensitivity then falls off, decreasing rapidly to almost zero sensitivity at about 2970, the beginning of the sun's spectrum.


BMJ ◽  
1925 ◽  
Vol 1 (3364) ◽  
pp. 1152-1153
Author(s):  
A. Blakiston

BMJ ◽  
1925 ◽  
Vol 2 (3376) ◽  
pp. 495-495 ◽  
Author(s):  
A. Blakiston

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