A New Potato Disease. 



323 



worth taking every possible precaution to check this parasite, 

 which otherwise might ensure for itself a wide distribution and 

 cause very considerable damage. 



M. C. Potter. 



Description of Figures (Plate IV.). 



Fig. 1. Photograph of potatoes from experimental pots : A 

 normal tuber, from control pot, grown in uninfected soil ; B and 

 C, tubers grown in soil sown with Ch. endobiotica. 



Fig. 2. Section through an " eye " of a potato, showing the 

 abnormal development of the leaf-primordia. The dark spots 

 indicate the parasite in the tissues. 



Fig. 3. Resting-spores : A, when ripe and detached ; B, in 

 the cells of the host. 



Z 2 



