DIRECT EXAMINATION 



41 



D 



Pi(j J — A^ Counting apparatus for molds (hyphae and spores) and yeasts. The 

 rulings are 75 sq. mm., 25 sq. mm., i s_q. mm. and 1^5 sq. mm. On either side of the 

 ruled area are glass slips 0.2 mm. thick, so that the entire capacity of the space 

 within the ruled area is 15 c.mm., subdivided mto 5 c.mm., \i c.mm. and >f25 

 c.mm. areas. 



