140 



JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



a day at least to intervene before using. It must be used 

 with caution, as it is a virulent poison, and should be put into 

 some peculiar-shaped vessel and labelled "Poison" distinctly, 

 that no accident may happen. Let this solution be applied 

 freely so as to soak into every crevice of the affected part. 



An occasional syringing of the whole of the tree with a weak 

 solution, say two ounces of creolin to the gallon (except during 

 blooming), during spring and summer, may be necessary at first. 

 On planting or root-pruning it is well to take the opportunity to 

 thoroughly apply this remedy to the roots, bearing in mind that 

 you are treating a more tender and vital part of the tree. 



The foregoing remarks are deductions from a large number 

 of experiments made by the writer on some of the worst cases 

 for the past four years, all of which have been eminently satis- 

 factory. Apart from the desired extermination of the Eriosoma, 

 the treatment improves the constitution of the tree, and doubt- 

 less rids it of other enemies. Other trees would be benefited by 

 a vernal and autumnal dressing similarly. The old-fashioned 

 custom of plastering the trunks of orchard trees with lime, soot, 

 and the draining abominations of the farmyard cannot be too 

 thoroughly deprecated, the germs of all manner of vermin 

 being introduced thus, and the bark being prevented from per- 

 forming its natural functions at the most important time of 

 year. 



Trees, like all other natural productions, thrive better in 

 cleanliness than in dirt. 



ANTIQUITY OF THE CITRON-TREE IN EGYPT. 



By Dr. E. Boxavia, F.R.H.S. 



[Read April 11, 1808.] 



M. V. Lonv/r lias recently (Paris, 1891) published a pamphlet 

 entitled " Le Cedratier dans l'Antiquite," 



We knew that the Citron had been called Malum pcrsicum, 



