ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 697 



Loss of Colour in Red Wines.*— R. Greig Smith considers the los 

 of colour stage of vin tourne to be due to the action of an acetic 

 organism which does its work by means of oxidase. From two samples 

 of decolorised red wines he isolated a bacterium, apparently a race of 

 Bad. ascendens Henneberg. It forms a delicate film, which creeps 

 high up the sides of the culture flasks ; it is easily broken, and falls to 

 the bottom of the wine as a flocculent precipitate. The cells are not 

 stained by iodine ; they are non-motile, and are not arranged in threads, 

 but occur singly, in pairs, and in masses. "When contained in wine it is 

 killed by an exposure to 43° C. for ten minutes. 



Bacerium teutlium, sp. n.f — H.Metcalf describes the parasite which 

 causes the rot of sugar beets. It is a rodlet without flagella or capsule ; 

 does not form spores or pigment ; occurs singly, in pairs, and in chains ; 

 is readily stained, and is positive to Gram ; does not liquefy gelatin ; 

 is a potential anaerobe ; does not form gas ; produces acid in all media ; 

 inverts cane-sugar ; and is not sensitive to acid or alkalis. It grows 

 freely on sugar beet, but less copiously or not at all on other media. 



Influence of Shaking- on the Development of Cultures.^ — B. Galli- 

 Valerio finds that shaking is rather more favourable than unfavourable 

 to the development of cultures of bacteria and yeasts. Also the 

 production of spores and of pigment is unaffected. The morphological 

 aspect is only slightly modified, and then only in the case of the longer 

 forms, which seem a little more bent ; micrococci, sarcina3, and saccharo- 

 mycetes not being altered in shape or in arrangement. 



Wright, A. E., & S. E. Douglas— Action exerted upon the Staphylococcus pyogenes 



by human blood fluids, and on the elaboration 

 of protective elements in the human organism 

 in response to inoculations of a staphylococcus 

 vaccine. Proc. Boy. Soc, lxxiv. (1904) 



pp. 147-59. 



„ „ „ Action exerted upon the tubercle bacillus by 



human blood fluids, and on the elaboration of 

 protective elements in the human organism 

 in response to inoculations of a tubercle 

 vaccine. Tom. cit, pp. 159-80. 



Tchitchkine, A. — De l'influence de l'ingestion des bacteries et des produits 

 bacteriens sur les proprietes du serum sanguin. (Influence of the ingestion of 

 bacteria and of bacterial products on the properties of blood serum.) 



Ann. hist. Pasteur, xviii. (1904) pp. 576-86. 



* Proc. Linn. Soe. N.S.W., xxix. (1904) pp. 213-6. 

 t Centralbl. Bakt. 2te Abt., xiii. (1904) pp. 28-30. 

 j Op. cit.. lte Abt. Orig., xxxvii. (1904) pp. 151-3. 



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