1917] VETERINARY MEDICINE. 477 



are brought together the policies and methods of the different Provinces of 

 Canada witli reference to cheese factory and creamery instruction and inspec- 

 tion. 



The chromog-enic micro-organisms of cheese and their presence in the 

 Italian " robbiola," G. Dalla Tokke (Staz. Sper. Agr. Ital., 49 (1916), No. 1, 

 pp. 59-67; ahs. in Internat. Inst. Agr. [Rome], Intcrnat. Rev. Set. and Pract. 

 Agr., 7 (1916), No. 4< P- 600). — Tlie autlior gives a list of the principal chromo- 

 genic micro-organisms occurring in cheese, with notes on their action and the 

 results of a bacteriological analysis of a sample of robbiola cheese made for 

 the purpose of determining the micro-organisms causing the spongy interior and 

 yellow outside cover of this cheese. 



The sponginess was found to be due to a bacterium of the B. aerogenes-coli 

 group. Of the 13,000,000 bacteria per gram of cheese, 200,000 belonged to this 

 group. The remainder were chiefly B. lactis acidi. The micro-organism caus- 

 ing the yellow exterior coloration in robbiola cheese was found to be a distinct 

 species with the following characters : Micrococcus, 0.8 to 1 /* in diameter ; 

 produces a yellow or yellowish green substance ; necessarily aerobic ; coagu- 

 lates milk and dissolves the coagulate, giving an acid reaction ; and loses its 

 coloring properties and odor when cultivated several times in succession. 



The preparation of homemade rennet, A. Todd and Elfkida C. V. Cornish 

 (Jour. Bd. Agr. [London], 23 (1916), No. 5, pp. 459-^62, fig. 1; Bd. Agr. and 

 Fisheries [Londan], Leaflet 60 (1916), pp. 4, fig. 1). — Detailed directions are 

 given for the preparation of rennet from the fourth stomach of calves. It is 

 stated that rennet prepared by the method described has been used in cheese 

 making with apparently satisfactory results. 



VETEEIiSTARY MEDICINE. 



The pathology and differential diagnosis of infectious diseases of animals, 

 V. A. MooKE (Neiv York: The MacmiUan Co., 1916, 4- c(Z., rev. and enl., pp. 

 XVI-\-593, 1)1. 1, figs. 120). — A revised and enlarged edition of the work pre- 

 viously noted (E. S. R., 21, p. 579). Two appendixes have been added, one on 

 the requirements for interstate shipment of live stock and the other on the 

 Federal regulations for the veterinary inspection of meat. 



Special pathology and therapeutics of the diseases of domestic animals, 

 F. HuTYRA and J. Maeek, edited by J. R. Mohler and A. Eichhoen (Chicago: 

 Alexander Eger, 1916, 2. ed., vols. 1, pp. XVI +1213, pis. 12, figs. 231; 2, pp. 

 XY II +1108, pU. 7, figs. 207).— This second English edition of the work pre- 

 viously noted (E. S. R., 28, p. 778), based on the fourth revised and enlarged 

 German edition, contains much information gained since tlie publication of the 

 third edition. It includes the new features of the fourth German edition, and 

 in many instances the editors have added other data relating especially to con- 

 ditions prevalent in this country. 



The first volume, in addition to new chapters on pnra typhus of hogs and on 

 sporotrichosis, also contains many elaborations in most of the chapters, espe- 

 cially with reference to etiology, allergic reactions, serodiagnostic methods, and 

 immunizations. Ascoli's precipitation reaction in anthrax and swine erysipelas 

 and the salvarsan treatment in contagious pneumonia of horses have been given 

 due consideration. The chapter on protozoan diseases has been carefully re- 

 vised and brought up to date. The authors have felt justified in separating and 

 differentiating the catarrhal form of influenza from the pectoral form or con- 

 tagious pneumonia of horses. 



In the second volume, on organic diseases, new chapters have been prepared 

 on catarrh of the sphenoidal sinus, dysentery, localization of the cerebral afEec- 



