junei, I920 Behavior of the Citrus-Canker Organism in the Soil 191 



Table I. — Inoculations on young pummelo leaves from infusions of untreated soil in 

 tubes made on consecutive days after inoculation with P. citri 



Date of inocula- 

 tion from tubes 

 to leaves. 



Oct. 23, 1918 



do 



do 



do 



do 



Oct. 24, 19 iS 



do 



do 



do 



do 



Oct. 25, 1918 



.do. 

 .do. 

 .do. 



....do 



Oct. 26, i9if 

 ....do 



.do. 

 .do. 



do 



Oct. 28, 1918 



do 



do 



do........ 



do 



Oct. 30, 1918 



do 



do 



do 



do 



Nov. I, 1918 



do 



do 



do 



do 



Nov. 4, 1918 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



do 



Infections from 200 

 punctures. 



93 per cent positive . . 



36 per centpositive . . 



do 



22 per centpositive . . 



6iJ^ per cent positive 



51'^ per cent positive 



6 per cent positive . . 



12 per cent positive . . 



4}4 per cent positive 



AH negative 



^ of I per cent posi- 

 tive. 



All negative 



3 per cent positive . . 



^ of I per cent posi- 

 tive. 



3 per cent positive . . 



AH negative 



X of I per cent posi- 

 tive. 



All negative 



^2 of I per cent posi- 

 tive. 



I per cent positive . . 



All negative 



do 



. ao. 

 .do. 

 .do. 

 .do. 

 .do. 

 .do. 



g],4 per cent positive 



AH negative 



do. 



.do. 

 .do. 



do. 



do. 

 .do. 

 .do. 

 .do. 



do. 



do. 



do. 

 .do. 



do. 

 .do. 



do. 

 .do. 



do. 



do. 



do. 



do. 



Date of observa- 

 tion. 



I918. 



Nov. 2, 1918 



Do. 



Do. 



Do. 



Do. 

 Nov. 4 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 

 Do. 

 Do. 



Do. 



Nov. 5, 19 iJ 



Do. 



Do. 

 Do. 



Do. 

 Nov. 9, 19 iJ 



Do. 



Do. 



Do. 



Do. 

 Nov. 20, 191^ 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



