316 



EXPERIMENT STATION RECORD 



Iron— Continued. 



compounds, solubility in soils, (34) 720. 



concentration in subsoil, (31) 720. 



content of cow's milk. (27) 412. 



content of urino, (27) 870. 



corruRatcd, in irriRation con.st ruction. (31) 90. 



deposition on niycelium of aquatic fungi, (26) 



825 

 detection in cheese curd. (2fi) 315; (27) 811. 

 detection in dairy salt, (27) 811. 

 determination, (27) 409. 

 determination in — 



blood, (39) 507. 



cane and beet sugar factory products, (29) 

 613. 



foods, (2!») .S09. 



milk, (2f.) 314; (27) 411; (28) 611, 808; (33) 875. 



mineral phcxsphates, (34) 112. 



organic substances, (31) 809. 



plant substances, (3.3) .'i02. 



plants, (29) 797. 



soil, (36) 814. 



water, (26) 709; (31) 502; (32) 504. 

 effect on— 



action of calcium cyanamid, (27) 500. 



Aspergillus fumigatus, (29) 30. 



Aspcrpillus ni;?(T, (30) 834. 



chlorosis in plants, (29) 82ii. 



color of apples, (28) 145. 



concrete sand, (.34) 787. 



development of barley, (30) 728. 



growth of molds, (27) 228. 



growth of tubercle bacilli, (29) 381. 



legume bacteria, (29) 733. 



perracabilitv (34) 34. 



plants, (36) .520; (38) 727. 

 ferrous, in soils. (.30) 719. 

 filings, efTect on tomatoes. (29) 339. 

 galvpnizi'J, for farm buildings, (28) 188. 

 hematoid, compounds in plants, (35) 634. 

 immobility in plants, (36) 128; (38) 728. 

 in Florida soils, (32) 319. 

 in soils, soluhilitv, (39) 821. 

 in tomato.^s, (32) 762. 

 movement in podzol soils, (.30) 216. 

 ore beds, formation, (26) 326; (27) 527. 

 ore dejjosits in Virginia coastal plain, (29) 513. 

 ore w&ste, fertilizing value, (28) 816. 

 oxid, distribution in loam soils, (31) 618. 

 oxid, effect on action of cyiiiamid, (28) 33. 

 oxid, effect on germination of seeds, (29) 528. 

 pan, formation in soils, (30) 719. 

 phosphate as affected by calcium carbonate, 



(26) 527. 

 phosphate, fertilizing value, (26) 428, 622; (31) 



823. 

 phosphate, solubility and availability, (37) 324. 

 precipitating in presence of organic matter, (31) 



417. 

 precipitation by light and plants, (26) 326. 

 pyrites, fertilizing value, (30) 627. 

 relation to— 



chlorosis, (33) 522. 



conidia of Aspergillus niger, (2^)) 431. 



grape chlorosis, (26) 344. 

 removal from water supplies, (29) 617. 

 role in biological oxidation, (28) 864. 

 salts, action on plants, (39) 630. 

 salts, compounds of, (28) 864. 

 salts, detection in wood, (20) 242. 

 salts, eftoct on — 



ainmonification and nitrification in soils, 

 (31) 120. 



catalass, (20) .W. 



ferments, (2''0 309. 



nilrJL-u.trofifu .i^cuniu'..;iion. (-ii-, 722. 



solubility of jihosphates, (37) 323. 



toxicity of cottonseed meal, (29) 477: (34) 

 79; (38) 2S2, 370. 

 salts- 

 reaction in presence of proteins, (28) 410. 



toxicity in soil, (36) 515. 



toxicity towards clover, (33) 328. 

 separation from aluminum, (38) 10. 

 solubility in soils, (38) 727. 

 solution and precipitation in soils, (.30) 718. 

 sprays, effect on forage crops grown on man- 

 ganese soils, (38) 829. 



Iron — Continued. 



sulphate, destruction of— 

 dandelions by, (31) 835. 

 horsetail by, (31) 741. 

 moss by, (31) 836. 

 weeds by, (26) 333, 839; (28) 838; (31) .532; 



(34) 228; (35) 340. 

 wild mustard by, (27) .'536; (31) 44, 133, 739. 

 sulphate — 



effect on plant growth, (3.5) 434. 

 effect on vield of beans, (34) 528. 

 fertilizing value, (26) 536; (30) 326; (31) 31; 



(3.3) 841. 

 for cottonseed meal-fed pigs, (31) 578; f3ff) 



471. 

 injection into trees, (32) 754. 

 preparation and use, (40) 748. 

 use against fly larvae, (34) 160. 

 use against grape chlorosis, (27) 850. 

 use against grape white rot, (30) 543. 

 u.se again.st plant rusts, (27j 47. 

 use in orchards, (33) 857. 

 sulphid, efTect on assimilation of rock ph-w- 



phate, (29) 419. 

 sulphid, fungicidal value, (37'> 48. 

 welding, (29) 593. 

 Ironweeds, analyses, (29) 320. 

 Ironwood — 



as lignum vitae substitute, (40) 640. 

 black, fungus disease, (40) 160. 

 Irpex flavus, notes, (28) 241; (31) 1.52. 

 Irrigation- 

 address on, (26) 788. 

 alkali distribution by, (40) 719. 

 amount and frequency, (27) 87, 385. 

 and land settlement in Western State.?, (3.=.) 886 

 automatic, for truck gardens, (28) 382. 

 bibliography, (31) 237; (32) 588. 

 border experiments, (40) 484. 

 border, slope of land in, (32) 586. 

 by borders or .sloping checks, (.38) 487. 

 gravity, (26) 788. 

 lateral percolation, (30) 486. 

 pumping, handbook, (28) 889. 

 pumping in western Kansas, (29; 121, 181. 

 underground pipe, (39) 590. 

 "zaaidams," (31) 782. 

 canals — 



and laterals, plaster lining, (33) 886. 



cleaning, (37) 285. 



concrete-lined, construction, (35) 180, 4*), 

 491. 



concrete-lined, enlarging, (34) 388. 



concrete lining for, (27) 890; (32) 380, 481. 



construction of curves, (27) 788. 



excavating with electrically driven dragline 

 scrapers, (34) 885. 



flow of water in, (33) 183; (35) 185. 



gate structures for, (3!) 782. 



leakage, prevention, (37) 487. 



lining, (27) 890; (37) 281. 



metal flumes for, (30) 588. 



plant growth in, (37) 281, 285. 



plaster lining, (33) 8S6. 



seepage losses, (33) 885, 886; (36) 585. 



silt problem in, (32) 882. 



transmission losses in, (34) 387. 



use of current meters in, (34) 281. 

 centrifugal pumps for. (28) 890; (31) 588. 

 computations, definitions and equivalents, (281 



186. 

 concrete in, (32) 787 

 concrete pipe for, (36) 583. 

 (ioncrete pressure pipe line for. (28) 484. 

 convoluted tube well,'' for. (29) 485. 

 i:00i)ei .b.on iii, ',J7) 888. 

 Desciiutes project, (33) 880. 

 development in United States, (26) 684. 

 distribution systems, (37) 1S5. 

 ditches, curves for velocity and discharge, (35) 



787. 

 ditches, determination of center. (31) 58S. 

 ditches, pasturing .sheep on, (40) 472. 

 drilling wells for, (32) 882. 

 economic advisability, (37) 184. 

 effect en- 

 action of fertilizers. (26) 522. 



alkali'soils, (26) 224; (28) 319; (34) 16. 



