1919] CONTENTS. V 



Page. 



Carduaceous species of Puccinia. — I, Species on Vernonlse, Tackson 155 



JEcial stage of J'uccinia oxalidis, Long and Harsch 155 



The treatment of covered smut of barley, Salmon and Wormald 156 



Smut in oats and barley 156 



Studios on the rice blast fungus, I, Nishikado , 156 



Fungus parasites of Bromus erectus, Cruchet 156 



Disease resistance in cabbage, Jones 156 



Leaf spot disease of clover, Krakover 150 



[Fungus diseases of mushrooms], McDougall 157 



A wilt of Capsicum anmimn, Pavarino and Turconi 157 



[Liability of potatoes to disease] 1~>7 



Black wart caused by Chrysophlyctis endobiotica, Kunkel 157 



Diseases of cane in tropical and subtropical America. Johnston et al 1" 



Nematode injury [to sugar cane] by Hetcrodera radicicola, Cobb 157 



Some important diseases of sweet potato, Sherbakoff 15S 



Peach yellows and peach rosette, Norton 158 



A few insects and diseases common to small fruits, Dudley 158 



Comparisons between effects of basic and of acid copper sprays. Capus 158 



Diseases and enemies of cacao in Ecuador, Rorer, trans, by Pachano 158 



Melanose of citrus, Fawcett 158 



Florida citrus diseases, Stevens 158 



Preventing wood rot in pecan trees, McMurran 15S 



Some bacterial diseases of orchids, Pavarino 158 



More about rose diseases. Massey 159 



A study of heart rot in western hemlock. Weir and Hubert 159 



Tumors of the maritime pine, Dufrenoy 159 



The white pine blister rust and the chestnut bark disease, Meinecke 159 



Black canker of chestnut, Briosi and Farneti 160 



Mycological and pathological notes, II, Turconi and Maffei 100 



Fames applanatus in South Africa, and effect on ironwood, van der Bijl 160 



Fomcs officinalis, a timber-destroying fungus, Faull 160 



ECONOMIC ZOOLOGY — ENTOMOLOGY. 



A sketch of the natural history of the District of Columbia, McAtee 160 



Genera of fishes from Linnseus to Cuvier, Jordan and Evermann 160 



About the biology of Mus concolor, Otten 100 



The role of the field rat in the epidemiology of plague, Otten 161 



The duration of infectiousness of the Indian rat flea, Otten 161 



Aristonetta, a good genus, Oberholser 101 



Hierofalco rusticolus candicans in North Dakota, Oberholser 161 



Olor columbianus on the Potomac River, Oberholser 161 



Spizella monticohi, correct name for American tree sparrow, Oberholser 101 



Squatarola squatarola synosuroe near Washington, D. C. Oberholser 161 



Ninth annual report of the State entomologist, Gillette and List 161 



Entomology 162 



Thirty-second report of the State entomologist, 1916, Felt 162 



[Control of insect pests in Washington] 163 



[A report on economic insects in British Guiana in 1916], Bodkin 163 



Injurious insects in Sweden during 1912-1916. Tullgren L 163 



Insect pests of plants cultivated in European Russia in 1914, Kulagin 163 



Report on injurious insects of the mulberry tree in Formosa, Maki 163 



Investigations on insects injurious to spruce and pine cones, Triigardh 163 



Ascertaining parasites of respective host insects. Tragardh 164 



Arsenate of lime, Sanders 104 



Present status of investigations of Coccobacillus acridiorum, Barbara 164 



A systematic study of Coccobacillus acridiorum, Glaser 164 



Notes on certain plant bugs connected with cotton in St. Vincent, Hutson_ 1 <;.""> 



Some effects of cotton stainer control in S. Vincent, Sands 165 



Notes on trapping the cotton stainer in St. Vincent, Sands 165 



Insect enemies of the chinch bug, Flint 105 



Observations on life history and habits of Pilophorus walshii, Fulton 165 



The dimorphs of species of Chaitophorus. Baker 105 



"Phe apple woolly aphis (Eriosoma lanigera), Becker 165 



Ceroplastes grandis new to Argentine fauna, Lizer 165 



Occurrence of Chrysomphalus paulistus in the Parana Delta, Lizer 165 



