Fa i. 



<^l 



<^ 



<^ 









^ 



(^ 



610 

 I 



Ii^. %. 



/£££ 



a 



i o 



t)0 ^ 



0^ 



fi^ 



Ficr. 6'. 





© 



gp 





. <ut n«-t. tit/. 



YEAST FORMS AND THE HANSEN CULTURE-BOX- 



