1012 EXPERIMENT STATION RECORD. 



Spotted kidney in calves, its histological nature, J. 1 5 asset {Rcr. Gen. Mai. 

 V('l., :i {1:10.}), Xo.r-'o, />p.'>,s',.'-'jSS,Ji</s. ..'). — The liistolo^'ical pathology of this disease 

 is (lescrihed in detail. As a result of this study the author reaches the conclusion 

 that spotted kidney of calves is characterized by intlanunatory lesions of an acute 

 nature, which may terminate in sui)puration or in thedevelopment of a clironicrcou- 

 dition. The etiology of the disease is not understood. 



Contagious pleuro-pneumonia, Constant and Mesnauu {Itec. Mai. VcL, S. .si r., 

 10 {I9Uo), Nus. IS, }>}). 436-444; 17, pp. 509-573). — The authors present in a tabular 

 form the prevalence and fatality of pleuro-pneumonia in various jiarts of France and 

 also give an account of inoc-ulation experiments which were undertaken for the pur- 

 pose of determining the period of incul)ation and other important matters concerning 

 this disease. 



A test was made of a method of 2>reventive inoculation from which considerable 

 success was had, although a nund^er of the animals thus treated died witliout the 

 ordinary lesions of the disease in the lungs. The authors conclude from their experi- 

 ments that the accidents which follow the use of preventive inoculation are observed 

 chiefly in animals in a state of latent infection. It is believed that the results 

 obtained throw new light upon the importance of latent infection in general. Pure 

 cultures of a known virulence may be used in inoculating healthy animals and ani- 

 mals in a state of latent infection, and the results thus obtained may be readily 

 compared. 



The authors believe that preventive inoculation may reveal the fact of latent 

 infection in animals thus treated, and that this inoculation ai)i)ears to bring about a 

 localization of the virus in vaccinated animals. The duration of innnunity produced 

 by the first inoculation is at least IQh months. 



Parturient paresis, F. W. van Dulm ( TycZ-sc/tr. Veeartsenyk. Mduudblad, JO {190£), 

 No. 3, pp. Ill, 112). — According to the author's experience the most effective treat- 

 ment consists in increasing the pressure within the mammary gland. This may be 

 done by injections of potassium iodid or other fluid, or by insutHation of aii-. 



The recurrence of parturient paresis, A. J. Winkel {Tijdsdir. Yeeartsenijk. 

 Mmtndbbtd, 30 [1003) , Nu. 6, pp. 250-238) . — A brief account is given of the occurrence 

 of 2)arturient paresis in a cow which had recovered from an attack of the disease a 

 short time before and about 3 days after parturition. 



The etiology and treatment of parturient paresis, Caillibaiti)(7iV;'. Vtl. Tou- 

 louse, 2S {1903), No. 7, pp. 420-42S). — The author attempts to reach a reasonable 

 hypothesis regarding the nature of this disease. The Schmidt treatment was used 

 by him for 2 years with excellent results. Warm applications to the udder and fric- 

 tion along the vertebral column were also found to exercise a beneficial influence. 

 From the fact that the injection o.Miquid or air into the udder produces good results in 

 the cure of this disease, the author concludes that parturient paresis is due to toxins 

 set free in the udder as the result of increased metabolism. The pressure of the liquid 

 or air in the udder is believed to check the physiological iirocesses and consequently 

 reduce the amount of toxin. 



Clinical notes on parturient paresis, E. Naudinat, Jr. {llec. Vit. Touloiwic, 28 

 {1903), No. 5, pp. 262-267). — In some cases of this disease the author ajiplied friction 

 together with treatment with mustard in the lumbar region, while stimulants were 

 administered l)y way of the mouth. The best results were obtained from the use of 

 Schmidt's method followed by the insufflation of air into the udder. In the use of 

 this combined treatment the author produced complete cure in 95 per cent of cases. 



The use of air in treating parturient paresis, Eggmann {Sdiweiz. Arch. Tierh., 

 45 {1003), No. 1-2, pp. 52-55). — In the author's experience the results obtained in 

 treating this disease by means of infusions of potassium iodid were not very satisfac- 

 tory. Much better results were had from the use of air. 



