672 Agricultur, Horticultur, etc. — Personalnachrichten. 



Watts, F., Manurial Experiments with Cacao in Dominica. 

 (West Indian Bulletin. Vol. VII. p. 201-212. 1906.) 



In the scheme of experiments some 1| acres, bearing cacao 

 trees {Theobroma Cacao) about ten years old, were divided into five 

 plots, which were treated as follows from 1900 onwards: 



A. No manure, 



B. Basic Phosphate, 4 cwt per acre; Sulphate of Potash, \\ cwt 

 per acre, 



C. Dried blood, 4 cwt per acre, 



D. Basic Phosphate, 4 cwt per acre, Sulphate of Potash \\ cwt 

 der acre; Dried Blood, 4 cwt per acre, 



E. Mulched with grass and leaves. 



The individual trees were thus manured year after year in the 

 same way. Taking the last year, the net financial result was, plot B, 

 gave a gain on manuring of S> 4.4.3 per acre, plot C, a gain of 

 £ 4.8.0 per acre, plot D, a gain of £ 8.0.4 per acre. Stil more striking 

 however was the result obtained on the fifth plot E. where the gain 

 on manuring was not less than £ 20.16.6 per acre. By gain on 

 manuring is meant the profit from the larger crop after deducting 

 the cost of the manure. 



The materials employed for mulching consisted of lawn mowings 

 and the fallen leaves of various trees. The Suggestion is made that 

 grass &c from uncultivated land might be used for mulching cacao, 

 these results shewing the importance of adding humus in tropical 

 agriculture. W. G. Freeman. 



Personalnaelirieliten. 



Mr. A. A. Lawson of Stanford Univ. (California) became 

 Ass. in Bot. at Glasgow Univ. 



Mr. A. W. Hill of Cambridge became Ass. Director of the 

 Royal Gardens, Kew. 



Mr. R. P. Gregory of St. John's Coli, has been appointed Lec- 

 turer in Bot. at the Cambridge Univ. 



Dr. P. Groom has been appointed Lecturer in Bot. at the 

 North London Pol3^technic. 



Mr. A. M. Smith, of Emmanuel College became Senior Univ. 

 Demonstrator in Bot. at St. John's College, Cambridge. 



Ernannt: der ordentl. Prof. an der Univers. München: Dr. 

 K. Goebel und der ordentl. Prof. an der techn. Hochschule Karls- 

 ruhe: Dr. L. Klein zu Geheimen Hofräthen. —Der Assistentam 

 botanischen Garten zu Berlin: Dr. R. Pilger zum Docenten der 

 Botanik an der technischen Hochschule in Berlin-Charlottenburg. 



Habilitiert für Botanik an der Universität in Gi essen: 

 Dr. W. Fr. Bniek. 



Ausj^eaeben : 34, December lÖOT. 



Verlag von Gustav Fischer in Jena. 

 Buchdruckerei A. W. Sijthoff in Leiden. 



