INDEX. 17 



Russell, H. M., bulletin on "The rose aphis," 90, 1-15. 



Ryeland sheep, origin, description, distribution, value, 94, 35-36, 57. 



Sacbrood — 



description, distribution, etc., 92, 4-5. 



disease of bees, destruction of germ by heat, experiments, 92, 5. 

 Sacks, potato, responsibility for spread of powdery scab, control method, 82, 14. 

 Salad, udo, preparation, 84, 13. 



Salt and ice mixtures, temperature of different proportions, 98, 14-17. 

 Scab, powdery — 



injury to potato crop and seed potatoes, 82, 7-10. 



occurrence on potatoes imported from various countries, 82, 5-6. 



of potatoes, 82, 1-16. 



of potatoes, control methods, 82, 12-13. 



of potatoes, danger degree, studies, 82, 8-10. 



of potatoes, history, other names, description, distribution, etc., 82, 1-6. 



of potatoes, occurrence in Maine, studies, 82, 6. 

 Scab, spongospora and oospora, macroscopic differences, studies, 82, 10-11. 

 Scott, L. L., work on codling moth control in Pecos Valley, New Mexico, note, 88, 1. 

 Seed— 



chalcidids, description, damage to conifer seeds, Pacific coast, 95, 4-5. 



collection, conifers, prevention of losses from insect damage, 95, 6-7. 



pure, value in tobacco ^ireworm control, 78, 14-15. 



treatment, use and value in control of potato powdery scab, method, etc., 82, 12. 

 Seeds — ■ 



clover and grass, purity determination, studies and methods, 78, 15. 



Pacific coast conifers (and cones), insect damage, 95, 1-7. 

 Shaw, E. L., and L. L. Heller, bulletin on "Domestic breeds of sheep in America," 



94, 1-58. 

 Sheep — 



American, origin of different breeds, 94, 57. 



breeds, classification of wool types, 94, 4-5. 



breeds, places of origin of imports from Great Britain, 94, 5, 57. 



breeds, publications, 94, 59. 



domestic breeds in America, 94, 1-59. 



fine wool breeds, 94, 4. v 



industry, Northwest, evolution, 94, 2. 



Merino types, origin, history, value, 94, 6-10. 



mountain breeds, importance of hardiness, note, 94, 2. 



prize winners at International Live Stock Exposition, Chicago, breeding, 94, 57-58 



wool types, 94, 4. 



woolless breeds, 94, 4. 

 Sheepmen, selection of breed, importance, considerations, etc., 94, 2-4. 

 Shells, use in commercial fertilizer, optical constants, 97, 12. 

 Shetland sheep, distribution, description, habits, value, 94, 38-39. 

 Shipping containers, tests, suggestions, 86, 7-12. 

 Shropshire sheep — 



scale of points, 94, 18-19. 



origin, development, distribution, value, etc., 94, 16-19, 57. 



white-faced, origin, description, distribution, value, 94, 35-36, 57. 

 Silver scurf, potato, distribution, nature, etc., 81, 3-4. 

 Skimming stations, purpose and management, 98, 85-88. 

 70931—14 3 



