IIikatslka: Sixuies on hik Fi.a\ Rusr 



IS! 



Table XV. Restclts of Experiment I. 



(Inoculation with the uredospores from "Pemau") 



Among six strain.s or varieties of cultivated flax used for the experiments, 

 five strains are fiber-flax, only one variety namely "Argentine" (T) being seed- 

 flax. These strains or varieties are obtained from the Teikoku Seima Kaisha 

 and the sign ( T ) is put after each name for abbreviation. 



Experiments II and ///. 



These inoculation experiments were made on 18 varieties and strains of 

 cultivated flax in two series. The first series was tested out of doors, and 

 the second series in the green-house. In the first series, the seeds were sown 

 in the pots and brought out of doors. When they grew to the height of about 

 six inches, the inoculation experiments were tried out of doors. The plants 

 were sprayed on Sept. 10 with a suspension of the uredospores from "Pemau" 

 (from Experiment I), and their control plants sprayed with sterilized water. 

 The pots were covered with bell jars. After two days, the bell jars were re- 

 moved and the plants kept well watered. After 8 days (Sept. 8), uredosori 

 appeared on the leaves of "\'orkshire'' and "White Blossom Dutch", the next 

 day, they appeared on "Pemau" (T. & H.), "London" (seed), "Saginaw" (T.), 

 "Prof Minami, B" (F), "Russia" (H), "Tiensin" (H) and "Siberia, D" (M); after 

 10 days, on "Saginaw'' (T), "Washington No. 14" (T) and "Prof. Minami" (II); 

 and at last after 1 1 days, on "Belgium" (T), while none of the control plants 

 showed any sign of the disease. In the second series, «they were tested in the 



