DESCRIPTION OF PLATES. 



[The serial numbers refer to the analyses of the same specimens 

 which appear in the tables in the earlier part of the bulletin.] 



PLATE I. Photomicrographs of apple starrh. 



Fig. 1. Apple tissue, showing starch in apple cells (X 40). 

 Fig. 2. Apple starch (X 200). 



PLATE II. \Vinh-r r<irn<li*e. 



Per cent. 



Fig. 1. Serial No. 6925; August 18, 1903; starch content 1. 69 



Fig. 2. Serial No. 7260; September 25, 1903; starch content 1. 19 



Fig. 3. Serial No. 7287; October 15, 1903; starch content 61 



Fig. 4. Serial No. 7296; October 23, 1903; starch content 50 



Fig. 5. Serial No. 7305; October. 30, 1903; starch content 28 



Fig. 6. Serial No. 7310; November 5, 1903; starch content None. 



PLATE III. />V// ]>;*. 



Fig. 1. Serial No. (.923: August 18, 1903; starch content 3. 16 



Fig. 2. Serial No. 72f,S; September 25, 1903; starch content 2. 40 



Fig. 3. Serial No. 7294 ; ( )ctober 23, 1903; starch content 94 



Fig. 4. Serial No. 7303; October 30, 1903; starch content .88 



Fig. 5. Serial No. 7308; November 5, 1903; starch content None. 



PLATE IV. Hniitx>n<tn. 



Fig. 1. Serial No. 6924; August 18, 1903; starch content 2. 69 



Fig. 2. Serial No. 7259; September 25, 1903; starch content 1. 00 



Fig. 3. Serial No. 7286; October 15, 1903; starch content 30 



Fig. 4. Serial No. 7295; October 23, 1903; starch content 72 



Fig. 5. Serial No. 7304; October 30, 1903; starch content 19 



Fig. 6. Serial No. 7310; November 5, 1903; - starch content "None. 



PLATE V. Yellow Tr<tiixj>arent. 



Fig. 1. Serial No. 6890; July 24, 1903; starch content 0. 35 



Fig. 2. Serial No. 6894; July 29, 1903; starch content 53 



Figs. 3 and 4. Serial No. 7054; August 24, 1903; starch content None. 



Fig. 5. Serial No. 7083; August 31, 1903; starch content None. 



100 



O 



