632 Lorande Loss Woodruff. 



Plate III. 



Fig. 19. Same as Fig. 18, Plate II. 



Fig. 20. Specimen in the 854th generation, period 62, July 4, 1903. 



Fig. 21. A double monster from A-i, 238th generation, June 16, 1902. 



Fig. 22. Orytricha fallax, B-culture. Specimen in the 365th generation, August 25, 1903. Con- 

 dition is normal. 



Fig. 23. Pleurotricha lanceolata, B-culture. Individual in the 413th generation, January 29, 1904. 

 Late division-stage. 



