1897] OBSERVATIONS ON THE MYXOBACTERIACE 4II 
Myxococcus cruentus Thaxter. 
Fic. 28. Group of cysts, that at the left showing thickness of cyst 
wall. C2 
Fig. 29. Group of spores. jy, 4. 
My-xococcus stipitatus Thaxter. 
Fig. 30. Stalk with spore mass still intact. C 2. 
Fig. 31. Stalk from which the deliquescent spore mass has been 
2. 
Fie. 92. Rods. +e, 4. 
Fig. 33. Spores. +5, 4. 
_ Myxococcus rubescens Thaxter. 
FiG. 34. Three spores preparing to germinate, stained with eosin, from 
Van Tieghem cell-culture. te 
Fig. 35. Different stages in the spore germination; c-g, division of rod 
while still adherent within spore wall; 4-7, rod escaping from spore wall ; 
J-k, rod emerging from spore wall on both sides. Drawn from living mate- 
rial in Van Ausitgiaes cell. +, 32. 
FIG. 36. Successive stages in spore formation; from preparation stained 
with nee s hematoxylin, showing deeply sera nuclear-like body and 
gradual transformation of rod to spherical spore. fy, 12. 
Cystobacter fuscus Schroeter. . 
Fig. 37. Groups of mature cysts removed from substratum. D 2. 
Fig. 38. Vegetative rods. py, 4. 
FG. 39. Rods separated from mature cysts by crushing, and stained with 
eosin, a nucleus-like body distinct in each. 
