NOTES AND ABSTRACTS. 



253 



kettle over a fire, keeping well stirred all the time, after which the full 

 quantity of water may be added and then promptly applied before the 

 sulphides are lost by cooling and crystallization. Material should be 

 strained and thoroughly agitated. To increase adhesiveness, 2 or 3 lb. 

 of salt may be added. — C. H. H. 



Lime Sulphur, Self-boiled. By P. J. Carmody {Jo^ir. Dep. 

 Agr. Vict., September 1909, p. 586). — Lime, 10 lb.; sieved sulphur, 

 10 lb. ; water, 50 gallons. Place lime in barrel and pour on enough 

 water to start it slaking, about six quarts. Then add the sulphur, and 

 finally enough water to slake the lime into a paste. Keep well stirred, 

 and after the violent boiling ceases the mixture should be diluted ready 

 for spraying. Five to fifteen minutes are required for the process, 

 according as the lime is quick-acting or sluggish. — C. H. H. 



Mag-nolia glauca. By E. Eiebe {Die Gart., April 30, 1910, 

 p. 205). — A rapid-growing, very hardy species, a native of the United 

 States. The best plants were usually found in damp, marshy ground. 

 Although deciduous in fairly sheltered positions, it is quite evergreen. 

 The leaves are glaucous green, and the flowers, which are less con- 

 spicuous than those of M. Yula7i, appear late in the summer, and are 

 very fragrant. Magnolia Yiilan var. conspicua, an early flowering, 

 very showy plant, is also described and illustrated. — G. R. 



Magnolia g-randiflora and its Varieties. By W. D. {Garden, 

 Sept. 4, 1909, p. 432). — In the Midlands and North this is grown as 

 a wall plant, but farther South does well in the open. It should be 

 planted in its permanent quarters when quite small, as it is impatient 

 of root disturbance. Seven varieties are described, M. g. gloriosa 

 being by far the most beautiful. — H. R. D. 



Mang-O. By J. Belling {U.S.A. Exp. Stn. Florida, Rept. 1908; 

 pp. 110-125; plates). — It is pointed out that mangos have, like the 

 orange, more than one embryo in their seeds, and that in some cases 

 the egg-cell does not produce an embryo. The extra embryos are 

 developed from the nucellar tissue, and are therefore of the nature 

 of buds, and likely to reproduce the characters of their one parent 

 true.— F. J. G. 



Manures and Manuring-. By J. J. WilHs {Gard. Mag. No. 



2927, December 4, 1909). — In view of the probable exhaustion of 

 natural deposits of manures in the near future the production of artificial 

 manures is a question of great importance. Two such manures are 

 now being prepared in quantity and are known as Calcium cyanamide, 

 or "lime nitrogen," and "basic nitrate of lime." The former is a 

 black powder containing 20 per cent, of nitrogen, equal to 24 per cent, 

 of ammonia. The latter is a brownish compound containing about 

 13 per cent, nitrogen and 25 to 30 per cent. lime. Both are soluble in 

 water and should form valuable plant foods. — E. B. 



