320 



SUBJECT INDEX 



Ultraviolet and phase, 150, 168 

 Undeviated wave, 17, 18, 27, 34-36, 42- 



46. 54, 282-283 

 Uniformly altered higher orders, 271-275 

 Unpolarized radiator, 241, 245 

 Urine, 192, 219 



Vacuum evaporation of diffraction plates, 



90 

 Vaginal smears, 219 



Vertical illuminator, phase, 145, 229, 231 

 Virus, 201 

 Vision, 1 

 Vital staining, 193 



Wave, 14 



D wave, 19, 20, 22 

 P wave, 19, 20, 22 

 S wave, 19, 20, 22 



Wave fronts, 42 



incident, 42, 43 



inclined, 42 

 Wavelength, 14 

 Wax, 229 

 Wild Surveying Instruments Supply Co., 



114, 117, 118 

 Winkel, G. M. B. H., 114, 119 

 Wood, 216, 229 

 Wool, 235 



Yeast, 183, 194, 203 



Zeiss, 5 



Zeiss, Jena, 114, 122, 124, 127 

 Zeiss-Winkel (see Winkel) 

 Zeriiike system, 269, 295 

 Ziehl-Neelsen stain, 184, 199, 200 



