INDEX. 7 



Bulle- 

 tin No. Page. 



Cranberry region, New Jersey, advantages for blueberry culture 334 2 



Creciscus jamaicensis, occurrence in Porto Rico, note 326 30 



Crops — - 



irrigation requirements, investigations in Idaho 339 2-58 



rotation — 



Chester County, Pa 341 83 



practices and recommendations, Chester County, Pa 341 83-86 



rotations and areas, Chester County, Pa 341 15-20 



yield, relation to farm tenure, Chester County, Pa 341 73 



Crotophaga ant, occurrence in Porto Rico, habits and food 326 59-62 



Crow, Porto Rican, occurrence in Porto Rico, habits and food. ...... 326 94-95 



Cuban quail, occurrence in Porto Rico, note 326 34 



Cuckoos, occurrence in Porto Rico, variant names, habits and food.. 326 56-59 



Culebra Island, physiography. .'. 326 3 



Cultivators — 



cost of different types, per acre and per day 338 14-15 



service period, relation to work done 338 14-15 



Curlews, occurrence in Porto Rico, variant names, etc 3"3 41 



Cuttings, blueberry, selection and management 334 8-11 



Cynthiana grape — 



analysis at different dates during ripening 335 13 



sugar and acid content, changes in ripening 335 17 



Dairy — 



cows, rate of depreciation, investigations in Pennsylvania 

 and Michigan 341 



industry, Chester County, Pa., history 341 



Dairying — 



income, percentage, and relation to labor income, Chester 



County, Pa 341 



types, relative importance, Chester County, Pa 341 



Delaware grape- 

 analysis at different dates during ripening 335 



sugar and acid content, changes in ripening 335 



Dendroq/gna autumnalis, occurrence in Porto Rico 326 



Dendroica, spp., occurrence in Porto Rico, habits and food 326 



Desecheo Island, physiography .' 326 



Diaprepes splengleri, bird enemies in Porto Rico 328 



Diphtheria bacilli, destruction by pasteurization, note , 342 



Dips, grape, formulas 349 



Disease, anthrax in man, treatment 340 



Dixon, H. M., W. J. Spillman, and G. A. Billings, bulletin on 



"Farm management practice of Chester County, Pa." 341 



"Dockage," wheat marketing, practices 328 



Dolichonyx oryzivorus, occurrence in Porto Rico, note 326 



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



Drill, grain, service period, relation to work done 338 



Drupe fruits — 



kernels, oil yield, nature 350 



relationship of different varieties 350 



See also Cherries; Olives; Peaches; Prunes. 

 Ducks, wild, occurrence in Porto Rico, species, variant names, habits 



and food 326 



Dysentery bacilli, destruction by pasteurization, note 342 



Eastern hemlock — 



93-95 



11, 15-16, 



21-23, 26- 



28, 43-47, 



76-81, 



93-95 



43-45 

 45-46 



11,13,15 



16, 17, 



19,20 



30 



101-106 



3,4 



10 



2 



12-13 



15 



1-99 



7 

 113 



48-52 

 12-13 



28-30 

 2 



ground-wood pulp, experiments and tests 343-j ' yW 



region of production, map 343 2 



