FIELD CKOPS. 129 



from the results obtained ihat if oopikm- snl|)liate were introduced at the surface 

 of a body of water of considerable deptli. the jilants at the surface would be 

 killed and al)sorb suHicient of the copper to render the solution voo dilute to be 

 toxic at a ,i;reater depth. 



International catalogue of scientific literature. R — Bacteriology (Iiitcr- 

 iiat. Cat. Sci. Lit.. .'/, (lOOO. pp. \ III + 500). — This catalogue is in continuation 

 of previous issues on the same subject, the arrangement being identical with 

 that hitherto described (E. S. K., 14, p. 1040). The present voiniiic is inten(le<l 

 to cover the bacteriological iiteratui'e of l'.)04 and embraces author and subject 

 catalogues, over ."'..(UM) titles being gi\en. There are many references to articles 

 included that can hardly be called bacteriological, and the American literature 

 is still iuadetiuately represented. 



FIELD CROPS. 



Field experiments with, farm crops, W. Saunders, J. H. Grisdale, W. T. 

 -Macoun, F. T. Siutt. J. Fi.ETCHKu. K. Robertson, S. A. Bedford, A. Mackay, and 

 T. A. Sharpe (Canada Expt. Farms Rpts. 1905, pp. 5-.',5, 1.5-90, 116-121, 123, 12.',, 

 l-',Ji-l.',S, 201-232, 2G5-2S(>, 321-3J,t, 357-361, 36J,-380, J,01-J,15, phs. 6).— The 

 report on work with field crops at the Canada experimental farms in 1905. 

 Most of the lines of investigation have been previously described (E. S. R., IT, 

 p. 125.) 



lT7(ertf.— The results of the uniform te.st plats- show that among 59 varieties 

 of spring wheat Austi-alia F, although badly rusted, ranked first with a yield of 

 39 bu. 40 lbs. per acre. Hungarian White and Kirsche, varieties added to the 

 test plat this season, are described. The list contains 17 varieties produced at 

 the Central Experimental Farm. Preston, Ilerisson Bearded, Advance. Prin- 

 gle Champlain, Huron, and Red Fern were the most productive varieties, as 

 shown by the yields for the last 5 years. These are all bearded varieties, and 

 Pringle Champlain and Red Fern give promise of good milling qualities. Red 

 Fife, White Fife, White Russian, and Laurel were among the most productive 

 beardless sorts, and of these Red Fife and White Fife are the best for making 

 strong flour. Aurora was the earliest variety of spring wheat grown at the 

 Central Experimental Farm this season, while Early Riga, Ebert, Riga, Downy 

 Riga, and (Jehun were the earliest in the regular plats. 



Of 11 varieties of durum wheat Roumanian, which stood at the head of the 

 list this year with a yield of 40 bu. 20 lbs. per acre, has also given the best 

 yield during the last 5 years. The 18 varieties of winter wheat under test 

 ranged in yield from 30 to .50 bu. per aci-e, the leading varieties being American 

 Banner, Gold Coin, and .Tones Winter Fife, yielding .50 bu.. 40 bu., and 45 Im. 20 

 lbs. per acre, respectively. 



At the Nova Scotia farm at Napi»:ui. Pringle Champlain stood first with a 

 yield of .'?5 lai. among 2S varieties, and Ilerisson Bearded last with .-i yield of 

 13 bu. 20 lbs. Roumanian durum wheat yielded 22 bu. iter acre, while Goose, 

 Yellow Gharnovka. and Maluiioudi yielded 17 bu. 20 lbs., IC, bu. 40 lbs., and 14 

 Itu., respectively. 



At the Manitoba farm the yields of 30 varieties ranged from 33 bu. 20 lbs. to 

 52 bu. per acre. The varieties yielding 45 Ini. or more per acre were, in decreas- 

 ing order of yield, as follows: Preston, Laurel, White Fife, Huron, Advance, 

 Red Fife, and Wellman Fife. The yields of 4 durum wheats under test were 

 iis follows: Yellow Gharnovka .54 bu., Roumanian .50 bu.. Goose 49 bu.. and 

 Mahmoudi 4<; bu. 40 lbs. per acre. Mahmoudi suffered slightly from rust while 

 the other varieties were free from it. A mixture of 200 lbs. oi superphosphate, 



