80 Agricultur, Horticultur, etc. — Personalnachrichten, 



Steps to be taken whilst the cotton is growing, especially in dealing 

 with the insect and fungoid pests of cotton. 



The information afforded is intended primarily for cultivators 

 in the West Indies and chiefly refers to Sea island cotton, {Gossy- 

 fiimi barbadense). W. G. Freeman. 



Anonymus. Sudan Gum. (Kew Bulletin, p. 23. 1907.) 



Refers to an article in the Kew Bulletin for 1906 dealing with 

 Persian Gum, in which a passage is quoted from the Pharmaceutical 

 Journal, March 29th 1890, stating, on the authority of Professor 

 E. Sickenberger, that quantities of Persian Gum are sent from 

 Bushire to Assouan, packed there in old Kordofan packages, and 

 sold as genuine gum. 



This passage has attracted the attention of the Central Economic 

 Board of the Sudan government, who, thinking that it may tend to 

 depreciate the value of Sundan Gum, have written to explain that 

 the Statement in the Pharmaceutical Journal is based on a misappre- 

 hension of an incident which occured fifteen years ago. 



It appears that, whatever the extent to which the practice 

 described by Professor Sickenberger may formely have prevailed , 

 it no longer exists. W. G. Freeman. 



Aso, K., The manurial value of different potassium Com- 

 pounds for barley and rice. (Bull. Coli. Agric. Tokyo. VII. 

 1. p. 68—72. 1906.) 



Es wurden Kalium-chlorid, -carbonat, -sulfat und -Silicat als 

 Düngemittel für Hordeum und Orysa verglichen, in mehreren auf- 

 einander folgenden Jahren, und zwar bei zwei verschiedenen Phos- 

 phaten, dem (sauren) Doppelsuperphosphat und dem (neutralen) 

 Dinatriumphosphat. Das Silicat (martellin) lieferte mehrmals den 

 Maximalertrag: das Carbonat gab ein besseres Resultat mit Doppel- 

 superphosphat als mit Di-natrium phosphat. Das Sulfat war bei 

 Orysa besser als das Chlorid, während bei Hordeum ein Unter- 

 schied nicht so deutlich hervortrat, doch schien das Sulphat hier die 

 Strohbildung, das Chlorid die Kornbildung mehr zu begünstigen. 



Loew. 



Bain, L. M. and S. H. Essary. Selection for disease-resistant 

 clover. A preliminary report. (Tennessee agr. Expt. Stat. 

 Bull. XV. p. 1—10. 5 flg. Dec. 1906.) 



The results are given of work done in selecting Stocks of red 

 clover resistant to Colletotrichum trifolii. Alsibre clover is almost 

 immune to attacks by the fungus, but Alfalfa is susceptible. 



Hedgcock. 



*&^ 



Personalnaehriehten. 



Dr. Marie Stopes, Iccturer at Manchester University is tra- 

 velling for special research with a Royal Society grant in Asia. 

 Letters and separates to be addressed to the Botanical Depart. 

 Imperial University Tokio, for the nexth 6 months. 



A-usgegeben : 93 Juli 1907". 



Verlag von Gustav Fischer in Jena. 

 Buchdruckerei A. W. Sijthoff in Leiden. 



