AGRICULTURAL INDEX 



685 



Orthoptera — Continued 

 Kev to orthoptera of Michigan with annota- 

 tions. R. H. Pettit and E. McDaniel. il 

 Mich Ag Exp Spec B 83:1-48 '18 



Oryctes rhinoceros. See Rhinoceros beetles 



Osage 



Now use for osage orange, il Country Gent 

 81:154 Ja 22 '16 



Osacre orange. C. C. Osborne, il Country Life 

 33:S0b F '18 



Osage orange dye. Wallaces' F 41:291 F 18 '16 



Osage orange waste as a substitute for fustic 

 d\ewood. F. W. Kressman. U S Ag Year- 

 book 1915:201-4 

 Oscinid flies. See Stem maggots 



Osiers 



Growing basket willow. J. B. Berry, il Ga 



Ag Coll (Ext) C 67:1-8 '17 

 Osier culture in France. Int R Sci & Prac Ag 



7, no 10:1454-6 O '16 

 Willow-giowing and basket-making as rural 



industries. H: P. Hutchinson, il J Bd Ag 



22:1081-95 F '16 

 Willows; commercial uses. S: B. Detwiler. il 



Am For 23:8-10 Ja '17 



Diseases and pests 



Insect pests of basket willows, il J Bd Ag 24: 

 844-52 N '17 



Osmosis 



Notes on osmotic experiments with marine 

 alga?. R. H. True, bibliog Bot Gaz 65:71-82 

 Ja '18 



Studies on exosmosis. S. C. Brooks, bibliog 

 Am J Bot 3:483-92 N '16 



Osmotic pressure 



Extension to 5.99° of tables to determine the 

 osmotic pressure of expressed vegetable saps 

 from tlie depression of the freezing point. 

 J. A. Harris. Am J Bot 2:418-19 O '15 



Notes on the calculation of the osmotic pres- 

 sure of expressed vegetable saps from the 

 depression of the freezing point, with a 

 table for the values of P for A = 0.001° to 

 A = 2.999°. J. A. Harris and R. A. Gortner. 

 Am J Bot 1:75-8 F '14 



On the osmotic concenti-ation of the tissue 

 fluids of phanerogamic epiphytes. J. A. Har- 

 ris, bibliog Am J Bot 5:490-506 N '18 



On the osmotic pressure of the tissue fluids 

 of Jamaican loranthaceae parasitic on vari- 

 ous hosts. J. A. Harris and J: V. Lawrence, 

 bibliog Am J Bot 3:438-55 O '16 



Osmotic concentration of the tissue fluids of 

 Jamaican montane rain-forest vegetation. 

 J. A. Harris and J: V. Lawrence, bibliog 

 Am J Bot 4:268-98 My '17 



Osmotic pressure as an index of habitat. B. 

 Moore. J For 15:1010-13 D '17 



Physical properties of some toxic solutions. 

 G: B. Rigg and others, bibliog Bot Gaz 61: 

 408-16 My '16 



Relation between biological activities in the 

 presence of various salts and the concentra- 

 tion of the soil sokition in different classes 

 of soil. C. E. Millar. J Ag Research 13:213- 

 23 Ap 22 '18 



Relationship between the osmotic pressure 

 of the soil solution and the growth of 

 wheat. M. N. Toulaikow. Int R Sci & 

 Piac Ag 7, no 12:1741-4 D '16 

 Ossipee Dark 



Man and his mountains: Ossipee park, the 

 country home of Mr Thomas G. Plant. 

 E. L. D. Sevmour. il map Country Life 31: 

 45-9 F -17 

 Osteology. See Bones 

 Osteomalacia. See Cage paralysis 

 Osteopathy 



Principles of osteopathy as applied in the 

 treatment of veterinary patients; with dis- 

 cussion. E. A. A. Grange. Am Vet M Assn 

 J 52:670-4 F '18 

 Osteopsathyrosis 



Osteopsathyrosis; fragility of bones due to 

 heredity. J Heredity 7:36-8 Ja '16 

 Ostrich breeding 



Absence of xenia in ostrich eggs. J. E. Duer- 

 den. il J Heredity 9:243-5 O '18 



Ostrich eggs 

 Absence of xenia in ostrich eggs. J. E. Duer- 



den. il J Heredity 9:243-5 O '18 

 Canned ostrich eggs. N Y Prod R 45:551 F 20 

 '18 



Ostriches 



Ostrich investigations. Ariz Ag Exp Rep 1916: 

 290-3 '16 

 Otiorhynchus ovatus. See Strawberry root wee- 

 vils 

 Otis, Charles A. 



Portrait. Breeder's Gaz 69:717 Mr 30 '16 

 Otsego county sheep breeders' association 

 Constitution and by-laws. N Y Ag Dept B 96: 



138-9 Je '17 

 Covmty cooperation. F. S. Barlow. N Y Ag 



Dept B 96:103-6 Je '17 

 When sheepmen cooperate. Nat Stock & F 41: 

 87 Ap 14 '17 

 Ottawa winter fair 



Ottawa winter fair, Jan. 16-19, 1917; ad- 

 dresses delivered. (In Report, Live stock 

 branch, 1916. p. 38-73) '17 Ontario ag. dept., 

 Toronto, Canada 

 Out-apiaries. See Bee culture — Out-apiaries 



Ovens 



Old bake ovens in Pennsylvania. E. M. Thomas. 

 J Home Econ 8:347-8 Jl '16 

 Over the wire; story. L. Bain. O Judd Farmer 



64:611 Je 8 '18 

 Overflow worm. See Fall army worm 

 Ovicides. See Insecticides 

 Ovine alliance. See National sheep and wool 



bureau 

 Owls 



Great horned owl. E. S. Jones. Ohio F 139: 

 30 Ja 6 '17 



Great horned owl. M. W. Leighton. il Coun- 

 try Life 30:42 S '16 



Owls. A. A. Allen, il Am For 24:219-24 Ap 

 '18 



Screech owl. E. S. Jones, il Ohio F 139:62 Ja 

 13 '17 



Short- eared owl. C: Carpenter, il Am Coop J 

 13:381 My '18 



Spare the owl. Power F 25:52 F '16 

 Ox warbles. See Warble flies 

 Oxen 



Here is a new one — ox power. Rural N Y 76: 

 4 Ja 6 '17 



Ox-power farm. Rural N Y 76:109 Ja 27 '17 

 .See also Cattle; Live stock 

 Oxford Bears fruit growers' association 



Oxford Bears fruit growers' association. 

 E. E. Conant. Mass Ag Bd Yearbook 1916, 

 pt 2:174-84 '17 

 Oxidases 



Catalase and oxidase content of seeds in re- 

 lation to their donnancy, age, vitality, and 

 respiration. W: Crocker and G: T. Harring- 

 ton, bibliog J Ag Research 15:137-74 O 21 '18 



Evidence of the action of oxidases within the 

 growing plant. J. H. Kastle and G. D. Buck- 

 ner. Am Chemical Soc J (C: L. Parsons, sec. 

 Box 505, Washington, D.C. $6 per yr) 39: 

 478-82 Mr '17 



On the mechanism of oxidase action. G. B. 

 Reed. Bot Gaz 62:53-64 Jl '16 



Oxidases in healthy and in curly-dwarf pota- 

 toes. H. H. Bunzel. bibliog J Ag Research 

 2:373-404 Ag '14 



Part played by oxidases in the improvement 

 of cultivated plants; 'oiological experiments 

 and considerations. M. Degli Atti. Int R Sci 

 & Prac Ag 8, no 5:706-8 My '17 



Physiological observations on alkaloids, latex 

 and oxidases in papaver somniferum. R. H. 

 True and W. W. Stockberger. Am J Bot 3: 

 1-11 Ja '16 



Relation between oxidase and catalase in 

 plant tissues. G. B. Reed. Bot Gaz 62:409-12 

 N '16 



Relation of catalase and oxidases to respira- 

 tion in plants (B. 191). C: O. Appleman. 

 bibliog Md Ag Exp Rep 1915-1916:1-16 '16; 

 Same cond. Am J Bot 3:223-33 My '16 



