AGRICULTURAL INDEX 



853 



Plows — Continued 

 Study of the plow bottom and its action upon 



the furrow slice. K. A. White, il Am Soc 



As Kng- Trans 12:42-50 '19 

 Timesaver tractor and one-way plough. Ag 



J of India 16:559-U3 S '21 

 Tony Ballu motor balance plough. M. Ringel- 



mann. plan Int R Sci & Prac Ag 10, no 4: 



464-6 Ap '19 

 Tractor-carried plow in three-bottom size, il 



Power F 28:60 D "19 

 Trial oi" three-furrow ploughs for mechanical 



ploughing in Italy. I. Ambrosini. Int K Sci 



& Prac Ag ll.no 1:104-5 Ja '20 

 Vulcan plow adapted to trashy ground, il 



Power F 28:56 S '19 



See also Colters; Hand plows; Plowshares 

 Bibliography 

 Report of the committee on research. Am 



yoc Ag Eng Trans 12:237-8 '19 



Plows, Steam 

 Machinery on the farm; the tractor and its 

 prototype, the steam plow of half a cen- 

 tury ago. il Farming 19:8-10 Je '21 

 Plowshares 

 .Sharpening plow shares. Nor' -West F 40:928 



S 20 '21 

 Things to know about plowshares. C. C. Her- 

 mann, il Power F 28:22 Mr '19 



Plum aphis, Mealy 

 Life history and habits of the mealy plum 

 aphis. W. M. Davidson, bibliog il U S Ag 

 B 774:1-16 '19 

 Plum curculio 



Cleaning up curculio in old orchard. G. W. 



Herrick. Rural N Y 78:1485 O 11 '19 

 Insects of the year; plum curculio. X J Ag 



Exp Rep 1918:212-13 '19 

 Plum curculio. Rural N T 79:675 Ap 3 '20 

 Plum curculio. J. M. Van Sickle, il Purdue Ag 

 13:21S F '19 

 Plum pocket. See Plums — Diseases and pests 



Plumage 



Molting and growing of plumage. J. E. Rice 



and others, il Am P J 50:840-1 S *19 

 Plumbaginaceae 

 Plumbago rosea. W: Macdonald. Gaid Chron 



(Lond> 66:323 D 27 '19 

 Plumbing 



Good job of plumbing. O Judd Farmer 68: 



1354 S 18 '20 

 Low-cost plumbing. W: C. Tucker, plans 



Country Gent 85:36 Ja 17 '20 

 Making wiped joints, il Power F 30:14-15+ 



Je '21 

 New plumbing in the farmhouse. W: C. 



Tucker. Rural N Y 80:866 Je 25 '21 

 Plumbing an old farm-house. F. B. Houghton. 



il Ohio F 143:350 Mr 1 '19 

 Plumbing for water supply. I. D. Wood. Suc- 

 cessful F 19:18 Ja '20 

 Plumbing on the farm. Country Gent 84:22 



Ag 16 '19 

 Plumbing on the farm, il Power F 30:18-19 



Ap '21 

 What we should know about plumbing. J. Van 



Alst. Country Life 40:69-70 My '21 

 Plumbing exhibits, Traveling 

 Farm water-supply truck covers New York 



state, il Domestic Eng (407 S. Dearborn st, 



Chicagp 10c) 94:13-14 Ja 1 '21 

 Plume moths. See Pterophoridae 

 Plums 

 Dormancy and hardiness in the plum. P. D. 



Strausbaugh. bibliog Bot Gaz 71:337 My '21 

 Drying plums in Oregon. C. I. Lewis and 



others. Int R Sci & Prac Ag lO.no 2:229- 



32 F '19 

 European and American plums. M. B. Davis. 



il Can Hort 43:219 Ag '20 

 Fertilizing peaches and plums. H: G. Bell, il 



Can Hort 43:221 Ag '20 

 How to grow plums and cherries. B: W. 



Douglass, il Country Gent 86:9+ Jl 16 '21 

 How to use hybrid plums. M. Palmer. Da- 

 kota F 39:1277 Ag 15 '19 

 Outlook for plum-growing below Quebec after 



loss of 1917-1918. J. C. Chapais. (In Rep.. 



Quebec Pomological & fruit grov>ing soc, 



1919, p. 5-8) '20 Quebec As Dept 



Peaches, plums, and cherries for the home 



orchard, l-'. W. Faurot. (C. 13) 7p '18 Mo. 



State fruit exp. sta., Mountain Grove 

 Petiolar glands in the plum. M. J. Dorsey and 



F. Weiss, bibliog il Bot Gaz 69:391-406 My 



'20 

 Plum pollination. A. H. Hendrickson. bibliog 



il Cal Ag Exp B 310:1-28 '19 

 Pkun.s lor ihu Northwest, il Dakota F 40: 



1960 D 1 '20 

 Plums in Califoinia. il map Cal State Comm 



Hort B V 8:178-81 Ap '19 

 Plums in Minnesota; discussion. Minn Hort 



47:67-73 F '19 

 Plums on walls and fences. E. Molyneux. 



Gard Chron (Lond) 65:149 Mr 29 '19 

 Pollination in orchards; self-fertility and 



self-sterilitv in plums. A. N. Rawes. il 



Roval Hort Soc J 40::i53-6 My '21: Abstract. 



Gard Chron (Lond) 70:107 Ag 27 '21 

 Relation of weather to fruitfulness in the 



plum. M. J. Jjor.sey. bibliog il J Ag Re- 

 search 17:103-26 Je '19; Abstracts. Int R 



tfci & Prac Ag 11, no 1:10-11 Ja '20; Ag 



Gaz of Canada 8:240-1 Mr '21 

 Spiav calendar for plums, il N J Ag Exp C 



ll9:l-:> 'L'U 

 Studv of sterility in the plum. M. J. Dorsey 



(Genetics, 4,no 5:417-88 '18); abstracts. Exp 



Sta Record 42, no 6:534-5 '20; Int R Sci & 



Prac Ag 11, no 9:968-71 S '20 

 Tests with unfruitful p'um-trees. G. Esam. 



il J Ag New Zealand 18:162-4 Mr '19 

 Wl^y in apple and plum selection. Dakota 



F' 40:424 F 15 '20 

 Whv tile plum fails to set fruit. M. J. Dorsey 



il'Minn Hort 48:356-62 D '20 



Breeding 



Experiments in breeding plums, with a note 

 on peaches. jNI. B. Crane, bibliog il J Pom- 

 ology 2:137-59 My '21 



Diseases and pests 

 Plum pocket and leaf gall on Americana 



plums. D. B. Swingle and H. E. Morris. 



bibliog il Mont Ag Exp B 123:167-88 '18; 



Same cond. (without bibliog) Mont Ag Exp 



C 77:151-64 '18 

 Spraving the stone fruits. W. B. Lanham. ii 



Prog F 34:83 Ja 18 '19 

 See also Brown rot; Plum aphis. Mealy; 



Plum curculio; Webspinning sawflies 



Statistics 

 Production of pears and plums and prunes 



in the United States, and number of trees. 



Ip '21 U.S. Bur. of the census, Washington, 



D.C. 



Varieties 

 Bartlett plum. P. Thayer, il Ohio Ag Exp B 



V 5:26 Ja '20 ,,. ^^ ^ 



New hybrid plums. D. C. Webster. Mmn Hort 



48:43-4 F '20 

 New or noteworthy fruits; plum culture at the 



East. U. P. Hedrick. il Rural N Y 78:351-2 



Mr 1 '19 

 Peaches, plums and cherries. F. W. Faurot. 



Mo Ag Bd B V 17:41-4 My '19 

 Plums and peaches for twenty acres, il Can 



Hort 43:93 Ap '20 

 Plums for market and home use; discussion. 



Minn Hort 47:371-6 O '19 

 Silver prune (so-called) and other plums. 



F. L. Washburn, il Minn Hort 47:49-50 F 



'19 

 Varietv tests of plums. (/» Rep., Vineland 



hort.' exp. sta., 1919, p. 37-41) '20 Ontario Ag 



Dept 

 Who's who among plums. B: W. Douglass. 



il Country Gent 85:13+ Ap 24 '20 

 Plunderer; story. H. Oyen. 11 See weekly num- 

 bers of Country gentleman Aug. 23-Oct. 25, 



1919 



Pluteus , . . .,. , . 



Development of pluteus admirabilis and tu- 

 baria furfuracea. L. B. Walker, bibliog il 

 Bot Gaz 68:1-21 Jl '19 



Plymouth rocks (poultry) .,.„,. v,. 



About the aristocrat barred rocks, il Reliable 

 P J 25:1127-30 F '19 



