64 



plowed before plautiug, a.s oiiuparod with lliogeon tlie sameiaml plowed 

 and baiTowed, were decidedly iu lavor of the former method. The 

 average yield per acre for the two years ou the plowed land was 431 

 bushels, while that on the harrowed land was 500 bushels. 



Brief notes are also given for six new varieties of onions. 



Cabbages, S. B. Green, B. S. (pp. GO, 70). — Tabulated notes on 

 tests of twenty-eight varieties. 



London purple for the curculio on native plums, S. B. 

 Green, B. S. (pp. 71, 72). — An account of experiments in spraying 

 with Loudon purple. The results indicated that the native plums may 

 be benefited by this treatment as well as the European varieties. 



Bagging grapes, S. B. Green, B. S. (pp. 72, 73). — The usefulness 

 and expense of protecting grapes with bags are considered, as well as 

 the times and methods of puttiug on the bags. Experiments with the 

 Delaware, Early Victor, and Brighton grapes are reported. "The fruit 

 was bagged witli paper bags when about the size of small peas. At 

 the harvest the bagged grapes were better in every case than those not 

 bagged, but the most marked difference was with the Brighton, the 

 bunches of which were clean, perfectly colored, and the sweetest grape 

 I have ever eaten. Those exposed were not so good in any way, being 

 very dusty, and uneven in ripening. In our previous trials with Con- 

 cord and Worden, and some other varieties, the result has been uni- 

 formly in favor of the use of bags as a covering." 



EoLLiNGSTONE PLUM, S. B. Green, B. S. (p. 73, illustrated).— A 

 brief account of this variety of plum, illustrated with cuts showing sec 

 tions of the fruit. This variety is considered by the author as '^perfectly 

 hardy with us (iu Minnesota), and a very excellent plum, of mild but 

 rich flavor, and a valuable addition to our list of hardy plums." 



Potatoes at different depths, S. B. Green, B. S. (pp. 73, 74). — 

 A brief account of an experiment with Burbank Seedling i)otatoes (cut 

 to two eyes), on a rich, light, clayey loam, in the dry season of 1889. 

 Planting on the surface and covering 2 inches deep was compared with 

 planting in furrows 3, G, and 8 inches deep and covering to the depth 

 of the furrow. The trials were made in four rows 3 feet apart and each 

 100 feet long, one row being used for each trial. The yields per acre 

 were 216 bushels from surface planting, 227 at 3 inches deep, 297 

 bushels at G inches, and 328 bushels at 8 inches deep. In a wet season 

 the author thinks the results might be reversed. 



Oak caterpillars, O. Lugger, Ph. D. (pp. 75-81, illustrated). — 

 Accounts are given of the following insects which infest the native 

 species of oaks in Minnesota: Anisota senatoria, Sui. Ab. ; Anisota vir- 

 ginieniiis,Drn.; I)atanaministra,Y>ru.; Udema alb ifrons, Sm. Ah. ; Jan- 

 assalignicolor, Walk.; Perophora melsheinieri, Harr. ; Apatela hrumosa, 

 Guen. ; Gastropacka americana, Harr. These insects are figured iu a 

 number of cuts, some of which are from original drawings. 



