' .^•■♦' 



^ 



T "" ~"S 



plate; I. A MARGURITE OR PARIS DAISY IN WHICPI PLANT CANCEiR HAS BE;e;n 



produci;d by inoculation (stt page: 6i) 



"A sterilized needle is taken and dipped into the culture containing the bacteria and 

 one or more small pricks are then made in the skin of the plant. After a few days nodules 

 appear." 



54 



