548 EXPERIMENT STATION RECORD. 



appear that the leaves from 1 acre of Connecticut Habana tobacco at harvest time 

 wnnld cover 4.S acres." 



Bacteria for lupines — inoculation tests -with soil, V. Sciireiber {Bev. Gen. 

 Agron., 9 [1900), Xu. 7, pp. S02-304) ■ — The use of 6,000 kg. per hectare of soil from an 

 old lupine field resulted in an increase of yield of lupines grown on uninfected soil 

 from 17,600 kg. per hectare where no inoculating soil was used to 40,100 kg. per 

 hectare. 



The eflfect of quicklime on the root bacteria of legumes, Salfeld ( Dent. 

 Landw. Presse, 21 {1900), No. 15, p. 932). — The author's experiments with quicklime 

 on poor sandy soil in 1894 led him to the conclusion that it was harmful to the 

 growth of root tubercles on field j^eas, lentils, garden peas, and Lathyms dymenuni 

 (E. S. E., 6, p. 533). Later field and pot experiments have shown that the poor 

 results obtained in 1894 on the limed plats must have been due to some other cause, 

 since the legumes have been grown with 3 times as much quicklime applied per acre 

 and the bacteria in nowise hindered in their action. On the other hand, the pres- 

 ence of the lime seemed to permit of their greater development. 



HORTICULTURE. 



Fruits, vegetables, flowers, and ornamental shrubs at the 

 Experimental Farms in Canada, W. T. Macoun, W. S. Blair, 

 S. A. Bedford, A. Mackay, and T. A. Sharpe ( Cam,ada Expt. Farms 

 Rj>ts. 1899, 2U^- 73-9 J^, 100-lOJ^, 109-112, 123-127, 259-281. 315-33^, 

 362-383, 1^,11-1^2 If,, figs. 12). — Separate reports are here given for tests 

 of large numbers of varieties of vegetables and orchard and small 

 fruits. At the central station in Ottawa, and at each of the liranch 

 stations in the Maritime Provinces, Manitoba, Northwest Territories, 

 and British Columbia, lists of seeds and cuttings distributed b}' the 

 stations, and of the vegetables recommended to farmers are given, 

 together with notes on the character and adaptability of various fruits, 

 flowers, and shrubs to their respective localities. The report of the 

 horticulturist, W. T. Macoun, at the Central Station includes an account 

 by two farmers of the successful growing and fruiting of apples, 

 plums, cherries, pears, and small fruits in high latitudes (-18° 26"), 

 where temperature variations ranged between — 40° and +104° F. 

 The secret of success in these regions seems to lie largely in removing 

 the snow from the roots of the trees dui-ing the winter so that the 

 ground will freeze to a depth of 4 or 5 in., after which snow and straw 

 may be placed at the base of the trees in order to prevent alternate 

 thawing and freezing before fine weather comes in the spring. Many 

 varieties of apples do not succeed in Ottawa. Thej^ are subject either 

 toBun scald, root killing, or killing of the terminal branches. Experi- 

 ments in top grafting to overcome these obstacles are being conducted. 

 Experiments in spraying plums, cherries, and apples with whitewash 

 in winter to retard the blossoming period in spring are reported at 

 the same station. The retarding of the swelling of the buds was quite 

 marked with plums and cherries, but the ditlcrence in dates of bloom- 



