INDEX. 



11 



Bulle- 



Grapea— Continued. tin No. 



ripening, development of sugar and acid, bulletin by William 

 B. Alwood, B. J. Hartmann, J. R. Eoff, M. J. Ingle, and S. F. 



Sherwood ..... 335 



studies of chemical changes in ripening, sources of samples, 



methods of analysis, and results 335 



Grapevines — 



phylloxera-resistant stock _. 349 



raisin, grafting on phylloxera-resistant stock, importance 349 



Grassquits, occurrence in Porto Rico, variant manes, habits, and food. 326 

 Grebes, occurrence in Porto Rico, species, variant names, habits, and 



food 326 



Grosbeak, Porto Rican, occurrence in Porto Rico, variant names, 



habits, and food 326 



Ground-wood — 



fibers, microscopic comparison 343 



industry — 



development and status 343 



future supplies 343 



Guara alba, occurrence in Porto Rico, note 326 



Guinea — 



hen, occurrence in Porto Rico, historical notes 326 



pigs, use in tests of anthrax serum 340 



Gum — 



black, pulp, experiments and tests 343< 



spruce, collection, note 327 



Gusano bianco, bird enemies in Porto Rico . 326 



Gymnasio nudipes nudipes, occurrence in Porto Rico, habits and 



food 326 



Haematopus palliatus, occurrence in Porto Rico, note 326 



Hairy vetch, specific gravity, comparison with wheat 328 



Hairy-pod vetch, description 328 



Half-and-half renting system, practice in Yazoo-Mississippi Delta.. . 337 



Hardwoods, pulp, experiments and tests 343-1 



Harrows — 



cost of different kinds per acre and per day 338 



service period, relation to work done 338 



Hartmann, B. J., and others, bulletin on "Development of sugar 



and acid in grapes during ripening " 335 



Harvester, bean — 



cost per acre and per day 338 



service period, relation to work done 338 



Hawks, occurrence in Porto Rico, variant names, habits, and food. . 326 

 Hay- 

 crop area and relation to labor income, Chester County, Pa 341 



rake — 



cost per acre and per day 338 



service period, relation to work done 338 



tedder — 



cost per acre and per day 338 



serviceperiod, relation to work done 338 



yield, relation to farm tenure, Chester County, Pa 341 



Helodromas solitanus solitarius, occurrence in Porto Rico, note 326 



Hemlock, pulp, experiments and tests 343J 



Herodias egretta, occurrence in Porto Rico, habits and food 326 



Herons, occurrence in Porto Rico, species, variant names, habits, 



and food 326 



Himantopus viexicanus, occurrence in Porto Rico, habits and food. . 326 



Hindi cotton in Egypt, notes 332 



Hirundo erythrogastra, occurrence in Porto Rico, notes 326 



Hog, Chester White, origin 341 



Hogs — 



raising in Chester County, Pa., status of industry 341 



sick from anthrax, treatment with serum 340 



Page. 



1-28 



2-28 



9 



8 



125-126 



17-18 



124-125 



49-50 



2-6 

 66-67 



27 



34 

 8, 9-10 



35, 36, 47, 



119, 145 



5 



11 



67-69 



38 

 3 

 9 



6,7 



45-47, 



144-145 



9-11 

 9-11 



1-28 



19-20 

 19-20 

 31-34 



38-40 



18 

 18 



18-19 



18-19 



73 



42 



35, 36, 



41, 96-99 



25-26 



20-26 



45 



5,8 



85 



49 



49 

 13-14 



