ILLUSTRATIONS. 

Prate I. Black rot of the grape. Treated and untreated. Bordeaux mixture, 
LD SEEDS A SSS 2 = ee ee 
PLaTE II. Black rot of the grape. Treated and untreated. Bordeaux mix- 
ISR. TLE EEE Fee a ee ery oe eyes ee NR ee i UE ee ae lS 
Prarve HiT Preaiment of apple scab in Wisconsin -....-...-.-.----------2.-:-- 
PLaTE IV. Pear leaf-blight. Record of treated and untreated French and 
American stock. Mullikin, Md., August 24, 1891........:..-..<.2.--s.- 
PraTE VY. Pearand cherry leaf-blight. Record of treated and untreated stock. 
PE See CL EPe ih DRY bs | gee ee a | 
PraTe VI. Plum leaf-blight in nursery. Treatment with Bordeaux, weak 
MMe ie Ne oo eet on Ses on we ne Sek Le coe 
PuLaTE VII. Quince fruit spot. Percentage representation. Geneva, N. Y ..- 
PLATE VIII. Quince fruit spot. Representation of actual yield. Geneva, 
DIAGRAM 1. Arrangement of vines in Svedberg’s vineyard at Sterling, Va..-. 
DIAGRAM 2. Plan of experiment in Vineyard 1, Svedberg’s...............---- 
D1aGRAM 3. Plan of experiment in Vineyard 6, Svedberg’s.......--.....----- 
DiaGRAM 4. Vines affected by black rot in Vineyard 1...................... 
Dr1aGRamM 5. Injury to vines from spraying in Vineyard 1 .................... 
D1aGRAM 6. Plan for treatment of pear leaf-blight, cracking, and scab......- 
DiaGRAM 7. Injury to pear trees from spraying .-..-.......-...---.----------- 
D1aGRaM 8. Foliage of pear trees with respect to leaf-blight ...........-.-..-- 
