AGRICULTURAL INDEX 



725 



Plants, Translocation in. See Translocation 

 Plants, Transpiration of. See Plants— Transpi- 

 ration 



Plants, Water requirements of. See Water re- 

 quirements of crops 

 Plants, Wilting of 

 Determination of wilting. A. L. Bakke. bib- 

 liog Bot Gaz 66:81-116 Ag '18 

 Plants in tlie Bible. See Bible plants 

 Plasmodiophora brassicae. See Clubroot 

 Plasmopara viticola. See Grape mildew 

 Play 

 Back-door play pen. H. S. Smith. Country 

 Gent 81:1423 Jl 22 '10 



See <ilso Amusements; Children's amuse- 

 ments; Games; Toys 

 Playgrounds 

 Better playgrounds at country schools. Prog 



P 32:1329 D 22 '17 

 Children's Isle; how Geneva, Illinois, solved 

 the playground problem. W. F. French. 11 

 Country Life 31:44-5 N '16 

 Children's playgi'ounds in parks and forests. 



S. Riley. Am For 23:680-2 N '17 

 Country playground. C. Comstock. Rural 



Manhood 8:98-101 Mr '17 

 Country playground. E. R. Davisson. Country 



Gent 82:406 F 24 '17 

 Parks and playgrounds. S. Silcox. (In Report, 

 Horticultural societies of Ontario, 1917, p. 

 91-5) '18 Ontario ag. dept., Toronto 

 Plaj-ground: its place in rural education. Prog 



F 32:747 Je 30 '17 

 Playgrounds in parks from the designer's 

 standpoint. F: L. Olmsted. Gard Chron Am 

 20:479-80 N '16 

 Trend of the playground movement. L. H. 

 Weir. Gard Chron Am 20:515-17 D '16 

 Pleasant happen-so; story. B. A. Dana. O Judd 



Farmer 64:540 My 18 '18 

 Plectrodera scalator. See Cottonwood borers 

 Plenodomus 

 Factors involved in the growth and the 

 pycnidium formation of plenodomus fus- 

 comaculans. G: H. Coons, bibliog J Ag Re- 

 search 5:713-69 Ja 17 '16 

 Plowing. See Tillage 

 Plowing contests 



Conducting a plowing match. C. O. Reed. 11 



Breeder's Gaz 69:1293 Je 22 '16 

 Master plowmen. F. M. Chase, il Country 



Gent 83:l-f N 2 '18 

 Ploughing matches. il Ag Gaz of Canada 



5:792-4 Ag '18 

 Ploughing matches and demonstrations. S. T. 

 Newton, il Ag Gaz of Canada 4:695-6 Ag 

 '17 

 Plowing contest. F. W. Duffee. Hoard's D 56: 



637 N 29 '18 

 Plowing match at Big Rock. F. M. White, il 



O Judd Farmer 65:309 O 12 '18 

 Plowmen compete at Big Rock. O Judd 



Farmer 61:5 S 30 '16 



Plows and plowing matches. J: S. Collier and 



C. O. Reed. 19p il n.d. Kankakee county soil 



and crop improvement assn., Kankakee, 111. 



Plows 



Agriculture Americanized. F. M. White, il 



Field II 27:175-7 Mr '17 

 Blanchard double brabant windlass plovigh. 

 M. Ringelmann. il Int R Sci & Prac Ag 9. 

 no 3:372-3 Mr '18 

 Donalies patent mechanism for attaching one 

 or more implements to a balance-plough, il 

 Int R Sci & Prac Ag 8, no 7:1029-30 Jl '17 

 Draft of gang plow. Wallaces' F 43:1009 Jl 



5 '18 

 Draft of plows. F. N. G. Kranick. Countrv 



Gent 82:230 F 3 '17 

 Dreux-Brezes double Flemish plough. Int B 



Sci & Prac Ag 7,no 1:115-16 Ja '16 

 EfTicient draft of plow. E. M. Mervine. Kim- 



balls D F 15:235 Ap 1 '17 

 Engine gang troubles remedied. C. O. Reed. 



O Judd Farmer 60:23 F 5 '16 

 Engine plows. I. A. Weaver, il Am Soc Ag 

 Eng Trans 9:104-9 '16 



Failure to scour in gang plows. C. O. Reed. 



O Judd Farmer 60:6 F 12 '16 

 Farm implements and machinery; plows and 



plowmg G. H. Alford. Prog F 33:10 Ja 5 '18 

 l-irst school of mechanical cultivation 



founded in Germany. E. Eckmann. Int R 



Sci & Prac Ag 8, no 4:553-4 Ap '17 

 Handhng the engine plow. C. O. Reed. O 



Judd Farmer 60:5 Ja 22 '16 

 How to hitch the plow to the tractor. E. L. 



Watson. Power F 27:10-11 Ag '18 

 Making the plow efficient. J. L,. Greenway. 



Prog F 31:343 Mr 4 '16 

 Motor ploughing in France. P. De Cabausse. 



il Int R Sci & Prac Ag 7,no 11:1650-2 N 



16 

 Motor-plowing sugar land. A. Wilkinson. 



Country Gent 82:1026 Je 16 '17 

 Nature's factory— the seedbed. C. A. Bacon. 



il Power F 25:12 Jl '16 

 No more left-hand plows. Rural N Y 77:5 Ja 



Plow. C. J. Borum. il Purdue Ag 11:28-9 P 



Plow and the tractor; correct hitching makes 

 for good work in the field. F. N. G. Kran- 

 ich. Country Gent 83:8-f- Ap 20 '18 

 Plow draft tests. Am Soc Ag Eng Trans lO.no 



2:150-5 '17 

 Plowing and harrowing. L. W. Lighty. Nat 



Stock & F 42:42 Ap 6 '18 

 Plows: different kinds and their use. G. H. 



Alford. il Prog F 31:589 Ap 29 '16 

 Quality of plowing and the draft of plows. R. 



Olney. il Power F 27:9 Ja '18 

 Selection of land for tractor ploughing. H. L. 



French. J Bd Ag 21:759-61 O '17 

 Setting coulter on engine gang. C. O. Reed. 



O Judd Farmer 60:8 F 19 '16 

 Side draft of gang plow. Wallaces' F 43:1193 



Ag 23 '18 

 Story of the left-hand plow. Rural N Y 77: 



724 My 25 '18 

 Study of the plow bottom and its action upon 

 the furrow slice. E. A. White, il J Ag Re- 

 oearch 12:149-82 Ja 28 '18 

 Vulcan tractor gang plow, il Motor Age (59 E. 



Madison st, Chicago. 10c) 34:38-9 Jl 18 '18 

 Walking plow adjustments. P. T. Hines. Prog 



F 33:129 F 2 '18 

 When your gang plow balks. P. T. Hines. 

 Country Gent 82:762 Ap 21 '17 



See also Listers; Mole plows; Plowshares; 

 Soil milling machines 

 Plowshares 

 Repointing plowshares, il Country Gent 83:37 

 Mr 16 '18 

 Plum aphis 

 Aphids on your plum tree? E. M. Patch, il 



Gaid M 26:164 D '17 

 Reddish-brown plum aphis (rhopalosiphum 

 nympheae Linn). W. M. Davidson. J Econ 

 Entom 10:350-3 Je '17 

 Plum aphis. Mealy 



Mealy plum aphis. J. G. Blakey. il Gard Chi-on 

 (Lond) 63:1 Ja 5 '18 

 Plum black-knot 

 Black knot of plum and cherry. R. C. Wal- 

 ton. 11 Ohio Ag Exp B v 3:36-8 F '18 

 Black knot of plums. H. E. Mern. Ohio F 138: 



598 D 16 '16 

 Some observations on the anatomy and other 

 features of the black knot. A. Stewart, il 

 Am J Bot 1:112-26 Mr '14 

 Plum borers 

 American plum borer. E. D. Blakeslee. bibliog 

 il U S Ag B 261:1-13 '15 

 Plum curculio 

 Plum curculio. E: A. Nelson, il Minn Hort 



44:245-9 Je '16 

 Spraying with arsenate of lead proves best 

 method of control. W. H. Goodwin, il Ohio 

 Ag Exp B V 2:113-16 Ap '17 

 Thersilochus conotracheli, a parasite of the 

 plum curculio. R. A. Cushman. bibliog il J 

 Ag Research 6:847-56 Ag 28 '16 

 Plum trees 

 Trees of Vermont; the plums and cherries. 

 G. P. Burns and C. H, Otis, il Vt Ag Exp B 

 194:156-7 '16 



