PLATE 33. 



Bacteria. 



A Bacillus anthracis WITH SPORES x 1200 



B Bacillus typhosus, FLAGELL.E x 1200 



C KLEB8-L6FFLER BACILLUS x 1200, swab from throat in diphtheria 



D Spirocliceta plicatilis x 600 



E Micrococcus IN Pus x 1500 



A and B 



Object ire 



Ocular 



Condenser 

 Illuminant 

 Aux. Condenser 



Screen 



Plate 



Exposure 



Developer 



Baker 's T V 



Swift 's-L" oil immers. 



oil immers. 



Achromat. Achromat. 



Watson's Holos. x 10. Swift's No. 4. 



Watson's Universal Achromatic. 



4 amp. arc. 

 Double convex lens. 



Yellow-green B+E. 

 Wratten's "M. " 



30". 

 M.Q. 



E (orange). 



Imperial Special 



Rapid Oil ho. 



2 min. 

 Pyro-soda. 



." oil immers. 

 Achromat. 

 Leitz No. 0. 

 Abbe N.A. 1.4, oiled. 



D E 



Zeiss 2 mm. oil 



immers. Apo. 

 Zciss projection x 4. 



W T atson's Holos. 

 immers. N.A. 1.30. 

 Liliput 4 amp. arc. 



Double convex lens, convergent light. 

 Wratten's B+E, monochromatic yellow-given 



5600-6000 



Wellington Imperial N.F. 



Anti-Screen. 



Exposure 30". 1 min. 



Developer ... Pyro-soda. 



Further photographic details and metJiods of preparation given 

 on page 240. 



Objective 



Ocular 



Condenser 



Illuminant 

 Aux. Condenser 

 Screen 



Plate 



Photos. H. L. H. 

 W. B. R. 



To follow page 240. 



