787 



Obio autl Ev^eritt Six Weeks did the best; tlie latter is tlie earlier, but 

 does not yield as good a potato as tlie former. The Early King- is also 

 promising-, but ripened a little later. Of the late varieties, liural New 

 Yorker No. 2 was the fmest potato we had. The Bus Barn and Greeu 

 Mountain yielded better, but the |)otatoes were not as good. The 

 Ivogers Seedling is very large and nice, and the Mrs. Eoraker ranks 

 among- the best." 



COBNCIKOWING, 0. E. CuRTiss, B. S. A. (pi>. 312-P»14).— Corn of the 

 Capital variety was grown on 5 acres of land manured with 103 loads of 

 barnyard manure and on 1 acre ad join ing this i)iece without manure. In 

 preparing both of these pieces of land in the spring acro]) of winter rye 

 was jdowed under. Both fields were cultivated exactly the same dur- 

 ing the entire season. The unmanured acre yielded 40.9 bushels of corn 

 and the manured land 59.2 bushels per acre. Early Mastodon and Mam- 

 moth Cuban corn grown on fall-plowed land without manure yiehlc<l 

 71.2 and 82.5 bushels of corn per acre, respectively. The large yield of 

 these 2 varieties on unmanured ground is believed to be partly due 

 to early planting-, as a drouth set in in May. 



Experiments avitii fungicides, L. II. Pammel, B. Age. (pp. 

 315-329, figs. 3). — An account of experiments on corn smut and wheat 

 rust, and with reference to the injury to the roots of corn plants by 

 copper salts. 



Expcrimenis on corn sinut (pp. 315-321). — Notes and tabulated data 

 on field experiments in which corn was giOAvn from seed treated with 

 hot water, ammoniacal carbonate of copper, or copper sulphate, and 

 from untreated seed. The results from hot water treatment were favor- 

 able. With ammoniacal carbonate of copper they favored the treatment, 

 but in the case of copper sulphate the treatment seemed to increase the 

 smut. On 1 plat corn was grown from seed which had been rolled in 

 tar and placed over an open water bath. A very poor stand was obtained 

 from this seed and the development of snuit was not prevented. Cal- 

 culations are given with reference to the relative amount of smut on 

 dillercnt parts of the corn plant. The stalks were smutted more than 

 the ears, and the largest amount of smut appeared on the lower part of 

 the stalk. 



E^fcct of copper on tlie roots of corn (pp. 321-321). — An account is 

 given of an exi)eriment in a greenhouse in which Capital corn was 

 treated with ammoniacal carbonate of copper, Bordeaux mixture, eau 

 celeste, modified eau celeste, or ferrous sulphate. "Before planting, the 

 soil was thoroughly pulverized, and to each lot of the whole series there 

 was added 500 c. c. of the fungicide, evenly distributed and mixed with 

 the soil. It was planted with corn the following- daj^" 



When ammoniacal carbonate of copper was used the roots were con- 

 fiiderably injured. The other fungicides produced little if any effect. 



Experiments on wlieat rust (pp. 32-1-329). — Two forms of wheat rust 

 {Puccinia graminis and P. ruhigo-vcra) are described and illustrated, 



