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recently developed non-hormone-type weed-killer. It was found that this substance is a highly toxic internal poison, and under some conditions the liquid spray might cause losses to field bees carrying water or visiting flowers for nectar. Poisonous Honey.—Two apiaries were established in the poisonous honey area to provide honey for chemical work on the extractions of unknown toxin. Honeys from apiaries in areas where poisonous honey may be produced were tested for toxicity. Air Transport of Queen Bees to England.—The possibility of developing a market in England for queen bees raised in New Zealand is being investigated. Supersonic Vibrations Emitted by Bees. —It appears that bees emit supersonic vibrations, and apparatus is being constructed to record these vibrations with a view to discovering if the bees use them as a means of communication. Publications Coup, M. R., and Dunlop, A. A. (1950) : " Digestibility Trials with Paspalum Dilatatum." N.Z. J. Sci. & Tech. (In press.) Cunningham, I. J. (1949): " Copper Deficiency Diseases in New Zealand, and the Relation of Dietary Molybdenum." Proc. 14th International Veterinary Congress, London, 1949. Cunningham, I. J. (1949) : " Sheep Dosed with Minerals Eat as Much Lick as Undosed Animals." N.Z. J. Agric. 78, 583. Cunningham, I. J. (1949): " Trace Mineral and Vitamin Deficiencies in Animals in New Zealand." Proc. British Commonwealth Scientific Official Conference. Specialist •Conference in Agriculture—Australia, 1949. (Plant and Animal Nutrition in Relation to Soil and Climatic Factors.) (In press.) Eilmer, J. E. (1949) : " Development in the Use of Penicillin for Controlling Mastitis." N.Z. J. Agric. 79, 134. Filmer, J. F. (1950) : " Cobalt Should Not be Wasted." N.Z. J. Agric. 80, 31. Filmer, J. F. (1949) : " Pathogenic Photosensitization of Animals in New Zealand." Proc. British Commonwealth Scientific Official Conference. Specialist Conference in Agriculture —Australia, 1949. (Plant and Animal Nutrition in Relation to Soil and Climatic Factors.) (In press.) Hancock, J. J. (1949) : " Studies in Monozygotic Cattle Twins " : Part I: " Organization of Twin Collection." Part II: " Recognition of Monozygotic Cattle Twins." Part III: " Uniformity Trials, Milk and Butterfat Production." Part IV : " Grazing Behaviour." N.Z. J. Sci. & Tech. (In press.) Harbour, H. E., Whitten, L. K., and Allan, N. S. (1949) : " Post-dipping Lameness in Sheep." Proc. 14th International Veterinary Congress, London, 1949, Section 1 (c). Josland, S. W. (1949) : " The Identification of S. bovis Morbificans Infection in New Zealand." J. N.Z. Assn. Bad., 4, 35. Josland, S. W. (1950) : " Salmonella Infections of Animals in New Zealand." Aust. Vet. J. (In press.) McFarlane, D., and Rennie, J. C. (1949) : " The Behaviour of Substances Introduced into the Bovine Mammary Gland via the Streak Canal." Aust. Vet. J. 26, 54. Mcintosh, I. Gr. (1950) : " Care Needed in Handling New Fumigant." N.Z. J. Agric. 80, 184.

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