IXDEX. 



19 



Drainage — Continued . 

 irrigated — continued . 

 lands — 



necessary preliminary investigations 



object 



Jefferson County, Texas. 



plan 



sur^'ey, work, and maps 



system, overflowed lands, maintenance, requirements. . . 



systems for irrigated land 



Drains — 



cost of construction and pipes 



covered — 



depth and location for irrigated land 



for irrigated land, construction 



manholes, construction, location, etc 



protective devices 



requirements for drainage of irrigated land 



irrigated land, construction and maintenance 



lumber l^ox, for irrigated land, advantages, construction, 



life, etc 



open, disad\"antages and objections 



types for^irrigated land, construction 



Dredge, oyster, description and management 



Dredging, oysters, management 



Dunbar, G. W. — 



originator of lined cans for shrimp 



pioneer in shrimp canning, work 



Bulletin 

 No. 



Page. 



Early Michigan potatoes, gi'oup characters, varieties, etc 



Early Ohio — 



potatoes, group chai'acters, varieties, etc 



potatoes, origin and value 



Early Ro.se potato, origin and value 



East, E. M., potato selection for improvement of yield, work. 



Eggplant, insect enemies in Porto Rico 1 . . 



Ely, C. X.. introduction of Marianna plum, note 



Erapoasca mali. injury to beans, Porto Rico 



English sparrow — 



abundance in Northeastern States 



number per square mile, 1901, 1907, 1914 : 



percentage of native birds 



Enzymes, secreting areas of barley grain with reference to its 



morphology- 



Epitrix cucuinelii'i, occurrence on vegetables in Porto Rico. . 

 Erosion, soil — 



area devastated in United States : . . 



causes, relation of soil structure, types, etc 



checking device 



checking methods 



effect on quality and topography of land , 



preventive measures 



types, descriptions 



EudnrauH riroteuH, occurrence on vegetables in Porto Rico. . . 



Eustace, II. .].. potato improvement by selection, work on 



yield 



Factory, canning, equipment, methods, sanitation, etc..... 

 Farm household , number of members, average by geographic 



divisions 



Farmers — 



demurrage information 



interest in car supply by railways 



190 

 190 

 193 

 193 

 193 

 181 

 190 



190 



190 

 190 

 190 

 190 

 190 

 190 



190 

 190 

 190 

 196 

 196 



196 

 196 



176 



176 

 195 

 195 

 195 

 192 

 179 

 192 



187 

 187 

 187 



183 

 192 



180 

 180 

 180 

 180 

 180 

 180 

 180 

 192 



195 



95 



96 



191 

 J 91 



2-4 



2 



1-40 



13-40 



7-8 



35 



10-24 



33 



10-13 

 25-28 

 15-16 

 15-24 

 5-8 

 2^29 



5-7 



8-9 



8-10 



72 

 72 



75,76 

 75 



4,6-7 



4,8 



5 



3-4 



26 



,4,5,6,9 



10 

 2 



2 



1-32 

 6 



23 



6-9 



14 



14 



9-10 



10-14 



9 



7 



24-25 



1-10 



17 



1-27 

 2-3 



