CONTENTS. 



Preliminary note on silver leaf disease of fruit trees, Giissow 749 



Some frost injuries of fruit trees, Liistner 749 



Remedy for chlorosis of tip burn in fruit trees 749 



The growth and spread of decay fungi in storage fruit, Schneider-Orelli 749 



Lime-sulphur wash for mildew of apple trees {Podosphxra oxijcanthae), Boll 750 



PoiuTidie of the grape. Verge 750 



The treatment of downy mildew, Caors 750 



Raspberry root rot fungus (Ily pholoma faseiculare) , Zellner 750 



Nematodes on the roots of coffee trees, Tellez 750 



Hollyhock disease, Webb 750 



Bacteriosis of Iris pallida, Cavara 751 



Some Glceosporiums and their relation to a sweet pea disease, Taubenhaus 751 



Heart rot of Quercus nigra, House 751 



Resistance of oak wood to dry rot ( Merulius lacrymans), Wehmer 752 



The rot of scarlet maple produced by Dxdalea unicolor, Baccarini 752 



Injury to Pinus strobus caused by Cenangium abietis, Fink 752 



ECONOMIC ZOOLOGY — ENTOMOLOGY. 



Insect pests of farm, garden, and orchard, Sanderson 752 



Index-catalogue of medical and veterinary zoology, Stiles and Hassall 753 



Zoological record. Sharp 753 



Annual report of the entomologist for the year 1910-11, Anderson 753 



Report of work for 1905 and 1906 on San Jos6 scale, etc., Stewart 753 



Insect notes for 1911, Johannsen and Patch 753 



How contact insecticides kill, Shafer 753 



Concerning the action of potassium tellurate as a fly repellant, Mayer 755 



The existence of Schizotrypanum cruzi in Baliia, Brumpt and Piraja da Silva. . 755 



American Psyllidae, V, Crawford 755 



Natural enemies of the citrus plant lice, Essig 755 



Aphididse of southern California, VIII, Essig 755 



Systematically eradicating the white fly in Texas, Kone 755 



The white flies of Japan, Kuwana 755 



Treatment for the San Jos6 scale and terrapin scale insects, Symons et al 755 



The purple scale (Lepidosaphes bechii) , Quayle 756 



A muscardine of the silkworm not caused by Botrytis bassiana, Beauverie 757 



Fighting the cotton worm {Alabama argillacea), Hinds 757 



The control of the codling moth, Melander 757 



On a new disease of the caterpillar of Buphalus piniarius, Wolff 757 



A worm that attacks sugar cane in the Chanchamayo Valley, Peru, Ferreyros. . 758 



The fruit tree leaf roller. A new pest of the apple in New York, Herrick 758 



Pyridin and quinolin in combating cochylis and eudemis moths, Cazeneuve . . 758 



The early stages of certain geometrid species, Barnes and McDunnough 758 



Destruction of flies abroad 758 



Report on fruit fly control, Giffard 758 



The mode of transmission of leprosy, Sandes 758 



The cacao beetle 759 



Shot hole borers (Scolytidse and Bostrichidse), Green 759 



The three destructive snout beetles that attack apples, Brooks 759 



The present state of the knowledge of foul brood in bees, Koroley 759 



Ichneumonids and tachinids as intermediate hosts of Chlamydozoa, Wolff 759 



Some North American Cynipidae and their galls, Beutenmiiller 759 



The transmission of typhus fever, Goldberger and Anderson 759 



Notes on the peach bud mite, an enemy or peach nursery stock, Quaintance.. 759 



The fecundity of the cattle tick and the various periods of its life, Lahille 760 



Relation of Crithidia melophagi to the sheep's blood, Swingle 760 



Relation of Crithidia melophagi to the sheep's blood, with remarks, Swingle 760 



The role of insects as carriers of disease, Sergeois 760 



FOODS — HUMAN NUTRITION. 



Seasonal variation in the bacterial content of oysters, Gorham 761 



The sanitary inspection of oyster grounds in the United States, Fuller 761 



Studies on chicken fat 761 



Relative ease of digestion of cheese and beef, Langworthy and Milner 761 



Preliminary research on the chemistry of bread 761 



Hard water and fermentation, Freed 761 



