142 



PROTECTION OF TREES AGAINST ANTS. 



Ants cause so much trouble and loss especially to citrus groves that 

 any suggestion of a remedy will doubtless be welcome to planters. 

 The following paragraph is taken from the Queensland Agricultural 

 Journal. The method is promising, as it is well known that the cas- 

 tor oil plant is most repugnant to insects. 



" Many a freshly grafted bud on an orange tree has been destroyed 

 by ants, which, with some other insects, are the bane of budders. An 

 American fruit-grower has discovered a plan by which, he says, ants 

 may be kept in their place. His plan is to saturate wool strings with 

 castor oil, and tie these tightly round the trunk or limbs of the trees 

 which have been budded, The ants go up as far as the strings, but 

 none were seen to cross one of the bits of wool. Cotton strings will 

 not do, and experiments with other oil have not been successful. 

 Woolen yarn must be used. The s&me treatment is effectual on other 

 trees." 



ADDITIONS AND CONTRIBUTIONS TO THE 

 DEPARTMENT. 



Library (Serials) . 

 Europe. 



British Isles. 



Annals of Botany. Vol. XV. No. LVI1I. June 1901. [Purchased.] 



A New Admixture of Commercial Strophanthus Seed. By Pierre Elie Felix 



Perredes. (Reprinted from Pharmaceutical Journal April 27, 1901.) 



[The Wellcome Chemical Research Laboratories.] 

 Botanical Magazine, June, July. [Purchased,] 

 British Trade Journal, June. [Editor.] 

 Chemist and Druggist, July 13, 20. [Editor.] 



Colonial and Diplomatic and Consular Reports, April, May. [Col. Sec] 

 Garden, July 13, 20, 27. [Purchased.] 



Gardeners' Chronicle. July 13, 20, 27, Aug. 3. [Purchased,] 

 International Sugar Journal, Aug.. [Editor.] 

 Journal Royal Colonial Institute, May, 

 Journal of Botany, June. [Purchased,] 



Notes on Potamogeton. By Arthur Bennett. Reprinted from Journal of 



Botany, June 1901. 

 Nature, July 11. 18. [Purchased.] 

 Pharmaceutical Journal, July 13, 20. 

 The Public Ledger, May 24. [Editor.] 



The Hepaticae of Ross Island, Killarney. By David McArdie# "h Library of 

 Report on the Hepaticae of the Dingle Peninsula. >Bot, Gard., 



Additions to the Hepaticae of the Hill of Howth. J Glasnevin, 



France. 



Sucrerie indigene et colonial©, July 9, 16, 23. [Editor.] 

 Germany. 



Tropenpflanzer. June. [Editor.] 

 Notizblatt. Berlin. July. [Director.] 



Switzerland] 



Bulletin do l'Herbier Boissier. [Conservateur.] 



