EXPLANATION OF PLATE. 



Fk;. ]. Transverse section of mulberry leaf, thron<ih the centre of a 

 disease spot. Magnified 51 diameters. 



Fig. 2. A piece of the epidermis, of the under side, of the mulberry leaf, 

 showing stomata. Magnified 230 diameters. 



Fig. 'i. (n). Germinating spores of mulberry leaf disease, (h). Four 

 mother-cells, swollen by soaking in water, (c). Three mother- 

 cells, before immersion in water. Magnified 230 diameters. 



