852 



AGRICULTURAL INDEX 



Plants, Wilting of 



Water-supplying power of the soil as related 

 to the wilting of plants. B. E. Livingston 

 and R. Koketsu. Bibliog Soil Sci 9:469-85 Je 

 '20 

 Plaster and plastering 

 Right wav to plaster. S. H. Franks. Am 

 Thresherman 23:46 O '20 

 Plathypena scabra. See Green clover worms 

 Platynota tinctana. See Citrus fruits — Diseases 



and pests 

 Platypus omnivorus. See Barkbeetles 

 Play 



County fair festival. G: O. Draper. Rural 



Manhood 11:249-50 S '20 

 Games and play, il Farmer's Advocate 56: 



918 My 26 '21 

 Have you forgotten how to play. Penn State 



K 14:163 F 'I'l 

 Play in immigrant communities. B. D. Brink. 



Rural Manhood 10:161-2 Ap '19 

 Play of childhood. Prog F 34:896 My 24 '19 

 Piay spirit. V. Barger. Rviral Manhood 10: 



393-4 N '19 

 Return to the spirit of play. E. L. Rand, il 



Rural Manhood 10:20 Ja '19 

 Teachers should direct pupil's play. F. C. 

 Hebel. Nat Stock & F 43:240 My 24 '19 



See also Children's amusements; Games; 

 Playgrounds 

 Playgrounds 



Play and play-grounds. Ohio F 143:526 Mr 29 



•19 

 Public parks and playgrounds for every vil- 

 lage and city. T. Wirth. Minn Hort 48:295- 

 8 O '20 

 Rural school playgrounds and equipment. 

 K. C. Richmond. (Teacher's leaflet 11) 

 12p bibliog '20 U.S. Bur. of educ, Washing- 

 ton, D.C. 

 Supervised playgrounds. Mrs S. G. Cole. (In 

 Rep., Women's inst., 1917, pt. 1, p. 155-8) 

 '18 Ontario Ag Dept 

 Plays 



See also Rural plays 

 Pleaching 

 Pleached lane or garden gallery. N. K. Morse. 

 Gard M 32:76-7 O '20 



Pleistocene period. See Paleontology- — Pleisto- 

 cene 



Pleurage curvicolla 



Some observations on the spore discharge 

 <^f pleurage curvicolla fWint.) Kuntze. J. L. 

 Weimer. Am J Bot 7:75-7 F '20 

 Variations in pleurage curvicolla (Wint.) 

 Kuntze. J. L. Weimer. Am J Bot 6:406-9 D 

 '19 



Pleurisy 



Diseases of the respiratory organs in horses. 



Farmer's Advocate 55:345 F 26 '20 

 Plovers 

 Plovers. A. A. Allen, il Am For 25:877-80 F 



'19 

 Plowing. See Tillage 

 Plowing contests 

 Art of good plowing, il Successful F 19:26 O 



'20 

 Delaware plowing demonstration. O. H. Pol- 

 lock, i] Nat Stock & F 43:58 Ap 12 '19 

 Dynamometer for the Lincoln trials. Ag J of 



India 16:94-7 Ja '21 

 Hamilton the scene of this year's plowing 



match, il Farmer's Advocate 55:1867 O 28 



'20 

 Inter-provincial plowing match. A. McDiar- 



mid. Farmer's Advocate 55:1896 N 4 '20 

 International plowing match at Woodstock. 



il Farmer's Advocate 56:1633-4 O 27 '21 

 Interprovincial plowing match, tractor and 



farm machinery demonstration. L. C. Mcou- 



at. J Ag CQuebec) 24:10 .11 '20 

 Manitoba's big plowing event, il Nor' -West F 



39:951 S\ 5 '20 

 Ottawa beach plowing-speed tests, il Soc 



Automotive Eng J (29 W. 39th st, N.Y. 50c) 



7:274-6 S '20 



Pilot rock plowing match, il Wallaces' F 45: 

 2299 O 1 '20 



Ploughing competitions, il J Ag (Quebec) 24: 



89 N '20 

 Plowing match on Macdonald college farm. 



il Farmer's Advocate 55:1824 O 21 '20 

 Plowing match that gets results, il Nor'-West 



F 39:812 Je 5 '20 

 Ploughing matches. Ag Gaz of Canada 6:980-1 



N '19 

 Rviles and regulations for plowing matches. 



Farmer's Advocate 56:1340 S 1 '21 

 Plows 



Biggest job in America. P. S. Rose, il Coun- 

 try Gent 85:3-44- S 18 '20 

 British farmers try out one-way motor plows. 



II World (Drexel av and 58th st, Chicago 



25c) 35:127 Mr '21 

 Care and repair of plows and harrows. E. B. 



McCormiok and L. L. Beebe. Farmers' B 



946:1-9 '20 (reprint) 

 Charrue automobile Excelsior. R. Dessaisaix. 



il J Ag Pratique 33:115; 34:514-15 F 5, D 



23 '20 

 Clean up the plow.s. J. F. Hobart. Coun- 

 try Gent 86:21 Mr 19 '21 

 Effects of attachments on quality of work 



and on the draft of plows. Sci Am (233 



Broadway, N".Y. 10c) 120:490 My 10 '19 

 EvoUition of the plow. A. McDiarmid. Farm- 

 er's Advocate 55:554 Mr 25 '20 

 Ftiotors influencing the draft of plows. E. V. 



Collins, il Ag Eng 2:27-9 F '21; Discussion. 



2:59-62 Mr '21 

 Foot-plow agriculture in Peru. O. F. Cook, il 



Pan Am Union B (17th and B sts, N.W., 



Washington, D.C. 25c) 52:160-6 F '21 

 Fowler self-lift stetch plough, il J Ministry 



Ag 26:1002-5 Ja '20 

 Getting ready for spring plowing. H. C. Ram- 

 sower. Nat Stock & F 42:1238 Mr 8 '19 

 Gianstti motor cultivator and its uses, espec- 

 ially in rice fields. A. Tarchetti. il Int R 



Sci & Prac Ag 10, no 7:974-7 Jl '19 

 Heavy plow for deep tillage, il Power F 28: 



58 O '19 

 Inrtuence of speed upon the draft of plow. 



.1. B. Davidson and others, il Am Soc Ag 



Eng Trans 13:69-76 '20 

 Left-hand plow investigation, May 20, 1920. 



Ag Eng 2:142 Je '21 

 Left-hand plow investigation, Sept. 16, 1920. 



Ag Eng 2:92 Ap '21 

 Longhini self-lifting plough, il Int R Sci & ' 



Prac Ag 10, no 10:1228-9 O '19 

 New Swiss motor plow. Automotive Indus- 

 tries (231 W. 39th st, N.Y. 15c) 40:1126 My 



22 '19 

 Oldest agricultural implement, il Successful 



F 20:26 Jl '21 

 One-way motor-ploughs. Ag News 19:339 O 



30 '20 

 Ploughs for mechanical cultivation. G. Duval. 



il Int R Sci & Prac Ag 11, no 4:497-503 Ap 



'20 

 Plow and the tractor. F. N. G. Kranich. il 



Country Gent 84:24 Ja 18 '19 

 Plow bottom design. C. A. Bacon, il Am Soc 

 Ag Eng Trans 12:26-42 '19; Same cond. 



Power F 28:9-11 F '19: Same cond. O Judd 



Farmer 66:8.'! Ja 18 '19 

 Plows. P. S. Rose, il Country Gent 85:10-11 



O 9 '20 

 Plows and plowing. W. F. Massey. Prog F 34: 



17S F 1 '19 

 Plows and plowing. J. M. Smith. 11 Sci Ag 



1:149-53, 203-8 Ap-My '21 

 Plows are built to hold themselves in grovmd— 



see that vours does. H. R. Chipman. il Prog 



F 36:352 Mr 19 '21 

 Plows old and new. G: Gardiner, il Field II 



30:102-5 F '20 

 Poh'^ultein- Dnlioi.^. R. Dessaisaix. il J Ag 



P'ratique 34:414 N 18 '20 

 Rajah plough. W. R. Brown, il Ag J of India 



14:586-8 Jl '19 

 Reglage des brabants-doubles. M. Ringel- 



mann. J Ag Pratique 35:114-15 F 12 '21 

 Some simple plow adjustments. G. W. Mc- 



Cuen. il Ohio F 148:279 S 24 '21 

 Something new in gasoline-driven plowing 



machines. J. H. Rodgers. il Sci Am (233 



Broadway, N.Y. 15c) 123:431 O 23 '20 



