CONTENTS. V 



I'age. 



The basket willow, Hubbard 843 



Observations! on the cultiiri' of .luglnns niffiu and t'uri/a alba, Schvvappaeli 843 



The silva of Colorado. II, The i)oplars, aspen.s and cottonwoods, iiaiiialey... . 843 



Interest inj,' trees recently observed in western Georj^jia, Harper 843 



Forestry: Fraetieal notes for New South Wales. — Conifers, Maiden 843 



Contribution to the knowledge of some tinil)ers of the Eritrea Colony, Senni. . 844 



An analysis of Canada's timber wealth, Fernow 844 



\\ ooil i)reservatit)n by the open-tank process, llartniann 844 



Experiments in tappintx Ceara rubber trees, Wilcox 844 



Report on the cultivation of rubber, Waterhouse 844 



The rubber industry in the territories of Manica and Sofala, Johnson 844 



On the rubber extracted from the latex of Eujorbia caiidelubro, Rebuffat 845 



Packing I'ara rubber .-^eed f.ir export, .Main 845 



KLSKASKS or PLANTS. 



Report on economic mycology, Salmon 845 



( )ccurrence of disea.'^es and insect injuries in 1907, Schander 845 



Troubles of alfalfa in New York, Stewart, French, and Wilson 846 



Alfalfa troubles, Hall 846 



A new snuit on Broinus mriilinuii Magnus 846 



Dry rot of potato tubers, Fethybridge and Howers 846 



Potato rot, Evans 847 



The fruit spot of apples, Brooks 847 



The api)le-tree canker or black-rot fungus in South Africa, Evans 848 



I>ie back of })each shoots, Massee 848 



The citrus fruit rot, Evans 848 



The diseases of the tea plant, Maublanc 848 



A root disease of Para rid)lH'r trees, CJallagher 849 



The disease of iir trees caused by Phoint abietinn, Mer 849 



The leaf rust of spruce, Delforge 849 



Yellow stripe in daffodils, Darlington 850 



Parasitic rose canker, (iiissow 850 



A new lilac leaf disease in England, Giissow 850 



ECOXOMIC ZOOLOGY — ENTOMOLOGY. 



The doci.oion of the Supreme Court on the sale of imported game. Palmer. . . . 851 



First re])()rt on the economic features of turtles of Pennsylvania, Surface 851 



Intluence of temperatures in limiting the distribution of insects, Sanderson.. 851 



Ubservations on the social j)arasites and slavery of ants, Wasmann 852 



A preliminary list of the lejndoptera of western Pennsylvania, Engel 852 



.\ monographic catalogue of the Mymarid genus Alaptus of Haliday, Girault. . 852 



Locust |)lague in Panama, Weitzel 852 



.Notes on gra.sshopper swarms in New South Wales during 1907-8, Gurney. . . . 852 



L<K"ust destruction work in the Transvaal, (iunn 852 



Tn-alment of cotton |)e<ts in the West indies in 1907, Ballon 853 



The boll-weevil problem, with sj)ecial reference to reducing damage, Hunter. . 853 



The red cot ton bug ( />i/sil<rciis cnu/uliitu.s ), Lefroy 854 



The col ton leaf roller (Si/Upta derogaUi ), Lefroy 854 



The tobacco caler|>illar (Prpdettia littorali^), Lefroy 854 



Melon aphis, Lounsbury 854 



A few orchard plant lice, Gillette and Taylor 854 



Orchard |)lant lice and their remedies, (iilielte and Taylor 856 



Control of leaf Idisler mite in ap|)le orchards. Parrot t S56 



Sidphur s|>rays for blister mile, llall 856 



A note on the fumiuMiion of citrus trees with hydrocyani<'-acid gas, Thomsen. . 856 



The castor semi-looper (Ojiliiiisa iiu lici rli ), Lefroy 856 



I'l in/>hifjii>i hssfllala: Alternate host, migrants, and true st-xes, Patch 856 



Chrysomeiid enemic>s of the osier and ex|)eriments with insecticides, Feytauil. . 857 



.•\ brief account of the anatomy and classification of the Ixodoidca, Ponnet. . . . 857 



.\ list of the ticks of South Africa, with descriptions and keys, Howard 857 



A new genus (»f the Siphonaptera. Fox '. 857 



Some Irish ex]»erimenls on warbh- (lies, Carpenter 857 



The extermination of mr)S(|uiloes, Levy 867 



The rehitioii of the etiology of l»ee diseasea to the treatment, W'hile 857 



South African bee keepini/, .\ltridi.'i' 858 



