VETEKINAKY MEDICINE." 187 



Cattle plague in China, H. E. Keylock (Jour. Coinpar. Path, and Thcr., 22 

 (1909), No. 3, pp. 193-213). — An account of the author's experience with rinder- 

 pest which appears to be indigenous to the whole of China. 



Diurnal variations in the temperatures of camels, J. B. Cleland (Proc. Linn. 

 8oc. N. S. Wales, 3/, {1909), pt. 2, pp. 268-271).— The autlior has found that 

 there is a wide variation hi the temperatures of camels varying with the exter- 

 nal conditions, the oscillations sometimes being nearly as much as 8° F. 



Echinorhynchus gigas of pigs, W. W. Dimock (Hanidad y Bcncfic, Boh Of. 

 Sec. [Cuba], 2 {1909), No. 2, pp. 115, i76).— The finding of this worm in the 

 small intestine of pigs, on several occasions and in different localities, has led 

 the author to believe that it is much more common in pigs in Cuba than is snp- 

 I)osed and that it may be the cause of a series of symptoms common to Cuban 

 pigs, to which a variety of names are given. The use of turpentine (in milk), 

 calomel and santonin, creolin, naphtlialin, male fern, etc.. has. in many instances, 

 resulted in marked improvement in the general condition of the animals treated. 



Hereditary or transmissible diseases in horses, C. .T. Marshall {Amer. Yet. 

 Rev., 35 {1909), No. 2, pp. 126-1 /f2). — A paper read before the annual meeting 

 of the Pennsylvania State JNIedical Association, March, liM)9. 



Cryptogamic poisoning in horses, R. N. McCareoll and R. H. McMullen 

 {Amer. Vet. Rev., 35 {1909), No. 2, pp. 157-159). — This article deals with the 

 poisoning of horses which followed the ingestion of moldy beet tops, and which 

 occurred during a period following alternately freezing and very mild weather. 



Investigations of the enzootic cerebro-spinal meningitis of the horse, 

 J. Marcq (A«h. mm. Vet., 58 {1909),- No. 1, pp. ll-2.'i; at)S. in Amer. Vet. Rev., 

 35 {1909), No. -i, p. ^63). — This disease, known in Belgium as Aizeau's disease, 

 is thought by some to be a specific microbian disease, by others to be an intoxi- 

 cation from a substance existing in fodders. The affection lias been observed 

 in England, Austria, Germany, and America. The author has studied the dis- 

 ease in several horses and from cultures of the cerebral substance of one he 

 succeeded in isolating a microbe. The mortality may reach 70 or SO per cent. 

 The results of medicinal treatment are doubtful. 



The immunity of horses against horse sickness, A. Theiler {Transvaal Agr. 

 Jour., 7 {1909), No. 27, pp. 355-377). — "The experiments show that tlie immun- 

 ity obtained by one virus is by no means absolute, inasmuch as breakdowns 

 do occur. These breakdowns must be considered to be due to the injection 

 with a different strain which is of another nature. The experiments, however, 

 with the Tzaneen strain clearly indicate that the virulency of a strain varies 

 as it passes through the different generations, and it is probable that in practice 

 a similar proceeding takes place, which at the present time we have not been 

 able to follow up. The experiments have to be tested further with the other 

 strains before we can definitely state that such an occurrence takes place with 

 them. The experiments further prove that the immunity can be increased by 

 mixing various strains together and ci'eating a polyvalent strain, and it is clear 

 from the tabulated analysis that the more injections an animal receives, either 

 with a monovalent or with a polyvalent strain, the better the immunity. 



" So far, in experimenting with a number of horses, we have not been able 

 to produce such an immunity that it can in no way. and under no conditions, 

 be broken, and it has, therefore, to be expected that, notwithstanding the 

 number of times an animal has been injected with many different vira of mono- 

 valent and polyvalent character, a certain percentage of breakdowns will occur. 

 The experience in practice so far shows that these breakdowns have in one year 

 amounted to 13 per cent, and it is at this figure that I am inclined to place 



20872— No. 2—10 7 



