354 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



&c. for San Jose, which scale is higher than the strength generally used 

 in this country as a winter wash, suggests the confidence of the Ohio 

 Experimental Station in its safety on dormant trees. — W. A. V. 



Spray Calendar, with Seed, Soil, and Disinfection Methods of 

 Treatment {U.S.A. Exp. Stn., Ohio, Bull. 232, 1911). — A very 

 valuable work on how to make and use insecticides and fungicides, 

 a number of methods of treating soil and stored grains, concluding with 

 a valuable spray calendar, and an account of cost of spraying and 

 mixing outfits. — C. P. C. 



Spraying Machinery, Care of {Dep. of Agr. and Tech. Instr. for 



Ireland). — ^The external bearings of the spraying machine should be 

 frequently oiled, but care should be taken not to let any of the oil get 

 upon the rubber parts of the machine. The machine should be well 

 washed out with water immediately after use, thoroughly cleaned and 

 dried, and the pump oiled before being put away. — C. H. H. 



Stapelia Leendertziae {Bot. Mag. tab. 8561). — Transvaal. Nat. 

 Ord. Asclepiadaceae, Tribe Stapelieae. Herb, leafless, succulent. 

 Stem, 3-5 inches long, 4-angled. Flowers solitary or in pairs. Corolla 

 campanulate, fuscous-purple throughout, 2-2J inches long, 2J inches 

 across. — G. H. 



Strawberry * Chesapeake.' By U. P. Hedrick {U.S.A. Exp, 

 Stn., Geneva, New York, Bull. 364). — A late-blooming variety of very 

 high quahty. Raised by Mr. J. W. Parks, of Nanticoke, Md., U.S.A. 



E. A. Bd, 



Strawberry Culture, Commercial. By S. B. Shaw {U.S.A. Exp, 

 Stn., N. Carolina, Bull. 187, Aug. 1913 ; figs.). — ^An account is 

 given of the field cultivation of the strawberry with suitable varieties, 

 none of which are British. We do not gather how much space is given 

 the plants, nor what tools are used in cultivating. Deep cultivation 

 is recommended until the end of August, after the berries are gathered, 

 after which shallow cultivation only is called for. — F. J. C. 



Strawberry *ProIifxC/ By U. P. Hedrick {U.S.A. Exp. Stn., 

 Geneva, New York, Bull. 364 ; plate) . — A seedhng raised at the Geneva 

 Station. Extremely vigorous and prolific. — E. A. Bd. 



Sugar and Acid in Oranges and Grape Fruit. By S. E. 



Collinson {U.S.A. Exp. Sin., Florida, Bull. 115, 1913 ; 23 pp.). — ^As 

 oranges mature the total sugar increases and the acidity decreases ; 

 in grape fruit a similar but less marked change takes place. — S. E. W. 



Sugar Beet and Nasturtium Leaves, A Bacterium causing a 

 Disease of. By N. A. Brown and C. O. Jameson {Jour. Agr. 

 Research, i. pp. 189-210, Dec. 1913 ; figs.). — An organism for which 

 the name Bacillus aptatum is suggested was isolated from nasturtium 



