8. (i. Jones 305 



(5) Pkiestley and Lechmere. A bacterial disease of Swedes. Joiirii. A(iric. Sri. 3. 



(6) Smith, Erwin F. Bacteria in Relation to Plant Diseases (Washington), 1, 2 and 3. 



(7) Taylor, T. H. Cabbage Top in Swedes. University of Leeds and The Yorkshire 



Council for Agricidlnral Education, No. 82. 



EXPLANATION OF PLATE IIL 



Fig. I. Diseased turnip with tlie young foliage of tlie growing point absent. Tiie plant 

 had been left in the open and only removed at the time of winter ploughing. The 

 rind had liecome hard, dry, and cracked. A small quantity of the shrunken pasty 

 mass is shown. 



Fig. 2. Appearance of the crown of a plant with six secondary shoots. The aperture 

 enclosed by them is surrounded also by leaf scars, which evidently belonged to the 

 decayed apical bud. 



Fig. 3. Sections across the leaf-crowns of diseased plants. 



{Received June I'dlh, 1922. 



21—2 



