12 DEPARTMENT OF AGRICULTURE BULS. 1051-1075. 



Pumping plants — Continued. 



in South — Bulletin No. Page. 



operation cost of various types 1067 44, 54 



tests at various points, conditions and results 1067 6-44 



Pumps, drainage, types for drainage plants in South 1067 2-3 



Pyrheliometer, description, and use in forest study, cost, etc 1059 50, 59 



Rabak, Frank, and E. A. Back, bulletin on " Red cedar chests as 



protectors against moth damage " 1051 1-14 



Radiometer, description, and use in forest study 1059 49 



Radiomicrometer, description, and use in forest study 1059 49 



Rations, poultry, fattening in the packing house 1052 1-24 



Red cedar chests, use in protection against moths 1051 11-13 



Reforestation — 



long-leaf pine — 



lands, methods and time 1061 41-44 



possibilities, growth rate, etc 1061-1 qr_aa 



seed-tree law of Louisiana 1061 40-41 



Rent — 



black lands of Texas, contracts and relation of landlord and 



tenant 1068 19-22 



contracts, provisions on 259 rented farms on black land 1068 20-21 



Heseeding long-leaf pine, seed-tree methods, seedlings, etc 1061 37-41 



Resin passages, significance in unterpentined trees, and uses 1064 9-10, 12 



Rhode Island wheat acreage and varieties 1074 215 



Ripening avocados, changes in stored product 1023 16-22 



Roaches, agent in spread of fungus spores 1053 37 



{10 12—17 

 ' 1 R-9? 

 Rock, Joseph F., bulletin on " The chaulmoogra tree and some re- 

 lated species " 1057 1-29 



Root-rot, corn, relation to character of endosperm of seed, bulletin 



by John F. Trost 1062 1-7 



Ropes, E. H., and E. G. Boerner, bulletin on "The test weight of 

 grain: Method for determination of the accuracy of the appa- 

 ratus " 1065 1-13 



Rosin — 



distillation of product of long-leaf pine, description 1064 3-4 



production — 



annual average 1061 22 



decrease, 1906-1921 1061 24 



from second-growth long-leaf pine, yield average 1061 22-25 



Rot, corn root, relation to character of endosperm of seed, bulletin 



by John F. Trost 1062 1-7 



Rotations, spruce forest, possibilities 1060 32 ' 



Rust, broom-forming, injury to Sitka spruce 1060 18 



Sanders, J. T., bulletin on "Farm ownership and tenancy in the 



Black Prairie of Texas " 1068 60 



Saps, osmotic pressure, determination from freezing point, table.. 1059 198 



Saw-timber, long-leaf pine, yield of trees of various sizes 1061 16-22 



Scald, pear, in storage, causes 1072 15-16 



"Scrape." See Oleoresin. 

 Seed — 



corn, occurrence of root -rot organism, studies 1062 2-7 



cotton — 



annual seeding requirements, sources of supply 1056 1, 2-3 



care in ginning 1056 4-5, 23-24 



delinted, weight, size, and appearance 1056 11-12 



germination test, factors affecting, etc 1956 18-20, 24 



marketing for planting purposes, bulletin by J. E. Barr. . 1056 1-24 

 planting stocks, selection methods and conditions gov- 

 erning purity 1056 1-2,3-4 



preparation for planting and improvement methods 1056 4-16 



purity certification, neglect and need 1056 23,24 



reclaiming, grading, sacking, and machinery 1056 12-16, 24 



