172 
18. The effect of the bacterial invasion on the organs of the 
infected cells; nucleus, cytoplasm and walls, as compared with those of a 
homologous healthy cell. (Read Fred, Virginia Ann. rept. 1909-1910:123, 
first paragraph.) Detail in enlarged pRawINGcs a healthy and an infected 
cell showing the cell-organs and contents. 
REPORT 
1. Present the evidence to show the pathological nature of the 
legume tubercles. Read in this connection: 
Smith, E. F. Bacteria in relation to plant diseases 2:97-146. 1911. 
Fred, E.B. The infection of root-hairs by means of Bacillus radicicola. 
Virginia Agr. Exp. Sta. Ann. rept. 1909-1910:123-137; and other 
references given in the text. 
