1910] 



INDEX OF Sll-,.1 i 





Oil — Continued. Pag*. 



■ ■is, determining oil content - 808 



seeds, Indian trade la 281 



Oils and fats — 



for the diet 



li.iinli.ook 804 



methodi of anal] ila 812 



optical dispersion 118 



production ami conservation In 



United stahs, r s.h.a 614 



specific heat 68 



■ also Fats.) 



Oistttx c<!»viiist<i>ii n.sp., description. 65."> 



Oltanagana iiri<u< n.sp., description.. 850 

 Oklahoma — 



College, notes 98,408 



Station, notes '.is 



Station, reports 97,694 



OU'thmitrs rmirlKllKI. Studies 561,668 



Olive — 



oil, production in United States, 



L'.S.D.A 614 



oil residue, fertilizing value 21 



scale, black, in Chile 651 



Olives, Insects affecting 854 



Olona as fiber plant 629 



<>!",■ c(,iumhi<nuis on tin- Potomac— 161 



OnoojtOit xobriux, notes 57 



Onion — 



bacterial rot, notes 155 



diseases in Ohio, Ohio 747 



fly, lunate, in New Jersey 654 



maggot, imported, notes 648 



pink root, studies 648 



thrips, control, I'.s.lvA 54$ 



Onions — 



alkali tolerance 710 



as affected by preceding crop, 



R.I 623 



carbon bisulphld for 619 



culture, N.Mel 833 



effect on following crop. R.I 



growth on acid soil 824 



liming experiments 134 



variety tests, U.8.D.A 41 



wild, stock poisoning by 



Onophilus n.g., de criptlon 61 



Oospore sooWes. (See Potato scab.) 



Ootetrastlchos in Hawaii 854 



OparrwM depreseiim, studies.. sr,j 

 Ophldla, wounds and dto — 



OpUtt Litmili*, studies 450 



toga and its larval affinities 757 



Opuntla — 



root growth in relation to • 



gen 



species as ornamentals 640 



water absorption and evapora- 

 tion -7 



Opuntia spp., wound periderm in 72s 



Orange — 



black rot, notes 889 



juice, antiscorbutic activity 27- 



paplllo and its natural enemy-. 62 



peel as an antiscorbutic 7" 



pest, new 100 



Orange — Continued. Page, 



• t t.-i in Tripoli 



vinegar, nianufa<tu 

 Oranges — 



culture experli 



frosted, detection and elimina- 

 tion 4««; 



frozen, ehange I 



fruit resembling, on lemon 161 



fruiting thorn I 



manuring. Banian method 246 



oil aiei pre - i afce from 



Batsuma, navel variety 246 



Batanma, vari. ti I D a I 



Washington navel, fruit s 

 ding 



Orchard — 



grass, culture experiments ' 



gtass for irrigated p 



U.S.D.A 



grass on bog and moss soils 212 



grass, variety te>is 



grass, yields, Minn 



plant lice, Studies. N..J I 



planting, explosive-fertill* r shell 



for 444 



Orchards — 



cover crops for, Ind 



cover crops for, I'.s.li.A 444 



cover crops for, Wash 711 



heating 



heating, Cal 



in South Australia 



pruning experiment i, Ind 7 



pruning experiments, Kans 34o 



rejuvenation, Ohio 311 



soli management 



soil management, Ind 1 



soil management, Kans 



spray gun for, Ohio 



spraying program for. Wash 742 



al*0 Fruits, A p p 1 

 Pi a. dies, ttr.) 



Orchid weevils, notes 



Orchids — 



bacterial diseases 1"^ 



fumigation 



insists affecting; N.J T64 



leaf spot, notes 



soils supporting; reaction 



Orchiius Cabanla, status., 



I 



Organic — 



pounds, photosynthesis from 



inorganic 



matter. <!. composition . 

 matter, decomposition, relation 



plant nutrlt! 



matter, effect on soil moisture.- 811 

 substances, coloring'- -ml- 



natlon 



Ornamental plants or shrubs. (See 

 Plants and shrubs.) 



Ornithodnros m<->jnini — 



notes C.'O 



re) D.&D-i 



48 



