G. H. F. Nuttall and G. S. Graham-Smith 137 
stages of infection by inoculation on the large and elongated forms seen 
in the living blood vve have never observed the formation of pyriform 
bodies by either of these methods, and cannot accept conclusions based 
1 2 3 
4 5 6 
10 11 12 
16 17 18 
22 23 
'iroplasma bovis.) 
Explanation of Diagram II showing multiplication forms of P. bovis 
compared with those of P. canis (Diagram I). 
“™PO»a ■» 
„ 7,8,9 
„ 10, 11 
» 12. 
„ 13, 14, 15 ... 
„ 16. 
„ 17, 18 
j Stages figured in 
( Diagram I (P. canis) 
I, 2, 8, 8, 9, 9. 
Stages between 9 and 10. 
10 . 
II . 
Stages between 12 and 13. 
13. 
14. 
The remaining stages correspond to other Diagrams as follows: 
Figs. 19, 20 ... ... ... 1906, Diagram 6, Figs. 1, 2 (p. 596). 
,, 21 ... ... ... ... 1907, Diagram 27, Fig. 3 (p. 240). 
„ 22, 23 ... ... ... 1906, Diagram 6, Figs. 7—16. 
