942 



EXPERIMENT STATION RECORD. 



[Vol. 41 



Citrus — 



bacterial spot, notes, 450. 



canker, characteristics and control, 55. 



canker, notes, 450, 452. 



canker, studies, 543, 751. 



diseases, notes, 543, 546, 841. 



groves, Argentine dnt in, 166. 



groves, green soldier bug in, 355. 



groves, soil improvement, 241. 



mealy bug on avocado, 354. 



mealy bugs, control, 664. 



mealy bugs, notes, 166, 756, 757. 



plant bugs, notes, 551. 



plants, subtribe and new genus, 432. 



scab, early occurrence in Japan, 157. 



scale, gray, remedies, 757. 



scale, purple, notes, 660. 



spots and blemishes, 350. 



white fly. (-See Wliite fly.) 

 Citrus fruits — 



as affected by too liberal use of water, 

 622. 



bud development and structure, Fla., 

 539. 



climatic requirements, TJ.S.D.A., 417. 



culture, 339. 



culture experiments in Philippines, 650. 



culture in South Africa, 540. 



fertilizer experiments, Fla., 539, 540. 



fertilizing program, 447. 



fumigation, 164, 551, 757; Cal., 550. 



immature, laws and regulations, 741. 



irrigation, 741. 



manuring, furrow system, 741, 837. 



rinds as hog feed, Md., 570. 



stocks for, 446. 



{See also Oranges, Lemons, etc.) 

 Cladosporium — 



citri on avocado, Fla., 545. 



fulvum on tomato, studies, 843. 



Clay- 

 effect on chemical reactions in soil, 



720. 

 plasticity phenomena, studies, 719. 

 CTeistothecopsis circinans n.g. and n.sp., 



description, 111., 247. 

 Clemson College, notes, 700. 

 Climate — 



and crop relations in United States, 



U.S.D.A., 417. 

 bioclimatic law, 16. 



effect on life and seasonal cycles of in- 

 sects, N.J., 58. 

 formula and reduced rainfall, 16. 

 interpreting by plant indicators, 327. 

 of Brazil, 211, 620. 

 of British Columbia, 620. 

 of Canada, 211. 

 of Liberia, 619. 

 of Mexico, 821. 

 of Utah, Utah, 17. 

 relation to period between blooming 



and ripening, 510. 

 (See also Meteorology). 

 Climatic changes, noninstrumental evi- 

 dence, 510. 



Climatological data. (See Meteorological 



observations.) 

 Climatology, importance to Philippine ag- 

 riculture, 315. 

 Cloth, treatment to prevent mildew, 551. 

 Clothes louse. (See Lice.) 

 Clothing — 



course on, 698. 

 textbook, 698. 

 Cloud classification tables, 808. 

 Clouds, classiflcation, U.S.D.A., 120. 

 Clover — 



alsike, culture experiments, Idaho, 225. 



alsike, rust of, 656. 



alsike, yields of seed, Idaho, 226. 



and grass competition as affected by 



fertilizer.?, 322. 

 as green manure, Del., 136. 

 as green manure for tobacco. Can., 832. 

 as hog pasture, Ohio, 178. 

 as silage crop, 732. 

 bacteria as affected by sulphates, 427. 

 bacteria, cross-inoculation tests, 523. 

 bird's-foot, for lime-poor soil, 230. 

 bird's-foot, seed treatment, 646. 

 button, variety tests, Hawaii, 138. 

 culture, Ind., 19. 

 culture experiments. Can., 528. 

 culture in Alaska, Alaska, 30, 31. 

 culture on Canada prairies, 732. 

 fertilizer experiments, Del., 130 ; N. 



Dak., 140, 823. 

 for cut-over land pasture, Minn., 387. 

 for hay and pasture, tests, 334. 

 for newly broken land, Idaho, 226. 

 hay, yields, Idaho, 226. 

 immature, vitamin content, 762. 

 liming experiments, Del., 136, 137. 

 mixtures for seeding waste land, 231. 

 mixtures, tests, 229. 

 red — 



as affected by wet conditions, N. 



Dak., 140. 

 composition and digestibility, 



Mass., 276. 

 culture experiments, Idaho, 225. 

 culture in Scotland, 530. 

 field tests, N.Dak., 824. 

 for silage. Mo., 334. 

 germination as affected by organic 



substances, 523. 

 inoculation, Alaska, 30. 

 insects affecting, 251. 

 irrigation experiments, Nov., 728. 

 leaf spot, U.S.D.A., 346. 

 pollination, 430. 

 seed size as affecting yield, 536. 

 seeding experiments, N.Dak., 140. 

 sulphur fertilizers for, 427. 

 yields of seed, Idaho, 226. 

 residual effect of manure on, 131. 

 rotation experiments, Del., 136 ; N. 



Dak., 139, 823; Ohio, 136. 

 rust, studies, 656. 

 sued cliaU'id fly, notes, 57, 261. 

 seed, cost of productioa, Minn., 91. 

 seed production maps, U.S.D.A., 442. 



