914 



JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



Celery Culture {U.S.A. Dep. Agr. Bull. 133, Exp. Sin. Work, xviii. 

 1901 ; illustrated). — Celery-growing first became an industry in the 

 United States, near New York, about 1858. It is now grown to supply a 

 summer and autumn as well as winter demand. 



Culture in the North differs somewhat from that in the South. In the 

 former the Celery is generally lifted and blanched in trenches or the 

 cellar, while in the latter it is blanched in place and not lifted. 



Various States have contributed information as to the cultivation, &c., 

 of Celery. 



The fertilisers chiefly indicated are nitrogen and potash. Amongst 

 the methods employed for blanching are : Earthing up ; the use 

 of boards about a foot wide ; drain-tiles, stiff wrapping-paper, &c. 

 and in the "new Celery culture " the growing of self-blanching varieties 

 in rows 8 to 12 inches apart either way, with boards on the outside only, 

 the plants thus shading and blanching themselves. 



Irrigation is necessary in *some form, and sub-irrigation, when not 

 deeper than 6 inches below the surface, has been found preferable to 

 surface irrigation. 



The early market demand in May and June has necessitated forcing, 

 and for this purpose seeds are sown in late autumn or early wdnter, when 

 the plants are ready for blanching a couple of months later. The best 

 method of blanching this early crop is found to be the use of lengths of 

 stiff wTapping-paper tied round the plant at two intervals of time. 



The bulletin deals besides with the different varieties and the relative 

 merits of different kinds of storage, especially cellars and trenches for 

 winter use. — C. H. C. 



Celery, Notes on Experiments. By Ernest Walker {U.S.A. Exp, 



Stn. Arkansas Bull. No. 64 ; December 1900). — A detailed account of 

 Celery culture in Arkansas, where practically it had previously received no 

 attention. Some few insect pests made their appsarance with the Celery 

 blight, Cevcospora apii, but none of them caused trouble. — M. C. C. 



Celery Rust, Suggestions. By Prof. C. 0. Townsend {U.S.A. Hort. 

 Soc, Marifland, 1899). — Experiments made for treatment of this rust led 

 to the conclusion that the rust may be controlled by spraying, that 

 ammoniacal carbonate promises better results than Bordeaux mixture, 

 and that shading is only partially successful in preventing Celery rust. 



31. C. C. 



Centrosomes. By S. Yamanouchi, Tokio {Beih. Bot. Cent. bd. x. 

 ht. 4 and 5, pp. 301-304, with 1 plate). — The author describes and 

 figures centrosomes from the pollen-mothercells of Lilium longiflorum. 



G. F. S.-E. 



Cereus peruvianus, Mill. By Cuno Becker {Die Gart. p. 134 ; 

 21/12/01). — Illustration of a fine specimen of this Cactus growing at the 

 garden of the Casino, Monte Carlo. Over 300 flowers were open at one 

 time. The height of the plant is about 31 feet, and the circumference of 

 the lower trunk is about 4 feet. — G. B. 



