lo June. 1910.] Experiments wifh Potato Diseases, igogio. 



36: 



•quantity of soil 

 was prepared and 

 then sterilized, 



after which it was 

 placed in pots 

 niiml)ered i. 2. 3. 

 and 4. 



No. I pet was 

 used for a control 

 for experiments A 

 and B. In this 



a clean Carman 

 which had been 

 treated with for- 

 malin was planted. 



Pot Xo. 2 had 

 a similar tubei 

 treated in the same 

 way as No. i. To 

 this was adtied a 

 half section of a 

 diseased N e w 



Zealand Pink-eye 

 taken from the 

 first truck of the 

 new crop con- 

 demned on ac- 

 count of scab at 

 Melbourne bv the 

 inspectors. From 

 this diseased tuber 

 all the eyes were 

 removed to pre\'ent 

 it growing. 



Pot No. 3 was 

 an exact duplicate 

 of No. 2 and con- 

 tained the corre- 

 sponding half sec- 

 tion of the dis- 

 -eased New Zea- 

 land Pink-eye. 



Pot No. 4 had 

 a very badly dis- 

 eased New Zea- 

 1 a n d Pink-eye 

 tuber of the win- 

 ter crop, also 

 taken from a con- 

 demned parcel. 

 This was planted 

 without any treat- 

 jnent. 



