292 



INDEX 



Wratten's panchromatic plates, 

 214 



three-colour filters, 205 



Yeast, living, 243 



Zeiss' 5 ampere arc, 87 



camera, large, 21, 150, 232 

 vertical and horizontal, 19, 



134 



condensers, 105 

 aplanatic, 106, 136 



Kbhler, 134, 150 



Zeiss' mechanical stage for photo- 

 micrography, 41 



mercury vapour lamp, 93 



microscope No. 1, 41 



Nernst lamp, 92 



- optical bench, large, 150 

 triangular bar, 200 



- paraboloid, 184 



- Planar, 79 



sliding Objective changer, 31 



tape for projection eyepieces, 73, 

 152 



vertical illuminator, 196 



THE END 



WILLIAM BRENDON AND SON, LTD. PRINTERS, PLYMOUTH 



