AGRICULTURAL INDEX 



351 



Downy mildew — ("oiitintK^d 



ControUinc: downy mildew of lettuce. A. T. 



Erwin. il la Afx Exp B 196:307-28 '21 

 Downv mildew. H. L.. Manuel, il Ag Gaz of 



New South Wales 32:745-7 O '21 

 Downy mildew. T. G. B. Oshorn. il J Dept 

 As S Australia 25:120-5 S '21 



Dowin !iiUdew of tne vine. C. C. ITamlilin. il 

 Ag Gaz of New South Wales 32:49-50 Ja 

 •21 



Occurrence of wheat downy mildew in the 

 United States. W: H. Weston, jr. bibliog 

 U S Ag- Dept C 186:1-6 '21 



Philippine downy mildew of maize. W: H. 

 Weston, jr. bibliog: 11 J Ag Research 19:97- 

 122 My 1 '20 

 Dracaenas 



Dracaenas. T. Sheward. il Gard Chron Am 24: 

 61 F '20 



Ornamental dracaenas. il Gard Chron (Lond) 

 68:215 O 30 '20 

 Draft horses. See Horses, Draft 

 Dragon flies 



Additional records of dragonflies from the 

 Ottawa region. J. McDunnough. Can Entom 

 r,,;:14 Ja '21 



Dragonflies of the Lake of Bays region. J. 

 McDunnough. Can Entom 53:6-8 Ja '21 



Howe. R. H. Manual of the odonata of New 

 England. (Thoreau museum of nat. his- 

 tory. Memoir no. 2) 6pts O 102p il pa $1.25 

 '17-'20 The author. Concord, Mass. 



Agr20-1626 



Nature's diar>-; the dragonflies. A. B. KUugh. 

 Farmer's Advocate 56:1220 Ag 4 '21 



New study of the economic value of dragon- 

 flies. J. G. Needham. Entom News 32:30-1 

 Ja '21 



Pseudomacromia natalensls and meruensis 

 (odonata). S. G. Rich. Can Entom 53:46-7 F 

 '21 



Sympetrum atripes (Hagen) a good species 

 lodon.) R. H. Howe, jr. il Entom News 32: 

 80-2 Mr '21 



Two davs with Indiana odonata. E. B. Wil- 

 liamson. Entom News 32:19-23 Ja '21 

 Drain tile 



Capacity of drain tile. O Judd Farmer 66:320 

 F 22 '19 



Community tile drainage construction. J: R. 

 Haswell. il U S Ag Yearbook 1919:79-83 '20; 

 Same. Separate 822 



Drain the wet land. R. A. Hayne. 49p il '21 

 Int. harve.'^ter co, Ag. ext. dept., 606 S. 

 Michigan av, Chicago 



Farm drainage. F. F. Shafer. il maps plan 

 TV Va Ag Ext C 246:1-33 '19 



Investigation of tests of Iowa shale drain tile. 

 W. J. Schlick. (Eng. exp. B. 49) 71p il '18 

 la. State coll. of ag. and mechanic arts, 

 Ames; Abstract. Exp Sta Record 41:786-7 

 D '19 



Let's drain our farms. M. K. Lincoln, il 

 Banker-F 7:4-5 Ja '20 



Magic of drain tile. 1. D. Wood. 11 Successful 

 F 20:20 F -21 



Run-off from underdrained land and action 

 of tile drains on ground water level. H. M. 

 Lynde. Eng & Contracting (608 S. Dearborn 

 St. Chicago 20c) 55:229-31 Mr 9 '21; Abstract. 

 Exp Sta Record 45:80-1 JI '21 



Some old drain tile — connecting a system sixty 

 years old with some new work. J: R. Has- 

 well. il Penn State F 14:257-8 Ap '21 



Summary of investigations on effect of tile 

 drains in the lime or prairie section of 

 Alabama. L. A. Jones, map Ala Ag Exp 

 B 214:99-106 '20 



Supporting strength of drain tile and sewer 

 pipe under different pipe-laying conditions. 

 W. .T. Schlick. (Eng. exp. B. 57> 68p il '20 

 Ta. State coll. of ag. and mechanic arts, 

 Ames; Abstract. Exp Sta Record 44:83-4 Ja 

 '21 



Tile drains. R. U. Blaslngame. Nat Stock 

 & F 44:670 S 4 '20 



Til no- )•'• hpnd and -marhine. .'=^. C. Hart- 

 man. Nat Stock & F 44:1191 Ja 1 '21 



Tiling devices snve monev. C. M. Baker, il 

 System on the Farm 4:240 Ap '19 



Statistics 



Drain tile. Ill Ag Dept Rep 1916:521-3 '17 



Drain tile. Concrete 

 Cement drain lile. Sci Am (233 Broadway, 



N.Y. 10c) 120:30 Ja 11 '19 

 Duiahiliiy ol concrt;le drain tile. O. B. 



Winters. Midi Ag E.\p Spec B 82:1-12 '17; 



.•^ame. Mich Ag Bd Rep 1918:470-9 "19 

 Drainage 

 Application of the law of variables to the de- 

 sign of drainage outlets. D: P. Weeks. Ag 



Eng 2:81-4 Ap '21 

 Assainissement des habitations rurales. M. 



Ringelmann. J Ag Pratique 33:31 Ja 8 '20 

 Conuiiunily tile drainage construction. J; R. 



Haswell. il U S Ag Yearbook 1919:79-93 '20; 



Same. Separate 822 

 Contour drains o;- canals on hillsides. F. D. 



Davies. Ag J of India 16:550-8 S '21 

 County drainage ditch; what is it? R. L. 



Patty, il Dakota F 40:1592 S 15 '20 

 Crop insurance by drainage. H: E. Cox. il 



Cornell Countryman 17:67-8 N '19 

 Digging a ditch with dynamite. E. A. Flans- 

 burgh. 11 Rural N Y 79:1237 Jl 24 "20 

 Ditch and road worl? combined on drainage 



project, plan Eng News-Record (10th av at 



36th St, N.Y. 20c) 82:623-4 Mr 27 '19 

 Does drainage pay? J Ag (Quebec) 24:128 



Ja '21 

 Drain the wet land. R. A. Hayne. 49p il '21 



Int. harvester co., Ag. ext. dept., 606 S. 



Michigan av, Chicago 

 Drain the wet spots. Farming 19:306 Mr '21 

 Drainage in highway construction. H. E. Cox. 



Rural N Y 80:731 My 21 '21 

 Drainage of grass land. Live Stock J 92: 



53 Jl 9 '20 

 Drainage of irrigated land. M. R. Lewis. Eng 



News-Record (10th av at 36th st, N.Y. 



20c) 82:153-4 Ja 16 '19 

 Drainage of irrigated lands. W. W. Weir, il 



J Ag Ca) 7:3-5-L p '21 

 Drainage without ditches. H. Sage. Am 



Thresherman 22:26 S '19 

 Draining a creek swamp. Prog F 34:1408 S 



6 '19 

 Draining farm lands cooperatively. R. B. 



Johnston. 11 Nat Stock & F 44:629 Ag 28 '20 

 Draining swamn lands. W. Xewton. Ag J of 



Briti.^h Columbia 3:."60 F '21 

 Experience with a ditching machine. F. L. 



Allen, il map Ohio F 144:493-4 O 25 '19 

 Extension project in land drainage. E. R. 



Jones. Am Soc Ag Eng Trans 13:24-7 '20 

 Fall drainage hints that pay. il Successful 



F 20:13 N '21 

 Farm drainage as an investment. H. M. 



Ward. Hoard's D 59:1006 Mv 7 '20 

 Farm drainage operations. J. A. Starrak. il J 



Ag (Quebec) 23:205-6, 231-2 Ap-My '20 

 Farm investment w^hich yields well. C: M. 



Flatt. Farmer's Advocate 56:275 F 24 '21 

 Field embankments. T. Gilbert, plan Ag J 



of India 16:483-95 S '21 

 Flow of water in dredged drainage ditches. 



C. E. Ram.ser. il U S Ag B 832:1-60 '20 

 Gold in ditching. Prac F 117:104 Ap 1 '21 

 Good job of plumbing. O Judd Farmer 68: 



1354 S 18 '20 

 Grass gutter. E. C. Stiles. Gard M 31:310 



Jl '20 

 How deep can a ditch be blasted out? O Judd 



Farmer 67:382 S 20 '19 

 How drainage raises land values. Literary 



Digest (354 4th av, N.Y. 10c) 64:99 Ja 24 



'20 

 How I regulate the water supply. J. A. King. 



11 System on the Farm 7:25-7 Jl '20 

 How we dug a tile drain. E. Rogers. Power P 



28:49 Ap '19 

 Hydraulic efficiency of a drainage ditch for 



five different channel conditions. C. E. 



Ramser. il Eng News-Record (10th av at 



36th St. N.Y. 20c) 82:522-3 Mr 13 '19 

 Inspection of drainage ditch cross-sections 



after contract dredging. E. S. Blaine. 11 



Eng News-Record (10th av at 36th st, N.Y. 



20c) 82:1019-22 My 22 '19 

 Irrigation means drainage or damage. It. E. 



Hodges. Pacific Rural Press 101:235 F 5 



'21 

 It pays to drain land. Penn State F 13:302+ 



My '20 



