788 CHRONIC INFECTIOUS DISEASES. 



morning and evening, and the inunction of five or ten grains of mercurial 

 ointment daily, or every other day. The treatment must not be pushed 

 to salivation, but should be suspended as soon as a decided improve- 

 ment in the symptoms begins to manifest itself, and renewed again 

 whenever the improvement seems to flag. It is very important that 

 the strength of the child should be supported by the most nutritious 

 diet possible. It would be wrong, however, to intrust it to a wet- 

 nurse, since this would expose the latter to the danger of infection. 

 That a syphilitic child, although it rarely infects its mother, often does 

 BO to its nurse, is simply because the mother is generally syphilitic 

 already, and hence is proof against further contagion. 



APPENDIX. 



INFECTIOUS DISEASES TRANSMISSIBLE FKOM BBTTTE8 TO HtTMAN UEINGS. 



WE shall merely discuss the subjects of glanders and hydrophobia 

 in the following chapters. Regarding the malignant pustule, though 

 this is likewise an infectious malady, communicable from the lower 

 animals to man, yet, as it is more especially a matter of surgical inter- 

 est, I refer to the text-books of surgery. 



(JHAPTEK I. 



HUMAN GLANDERS. MALLEUS HUMIDUS ET FABCINOSUS. 



ETIOLOGY. There is an infectious disease which attacks animals 

 possessing an undivided hoof, especially horses, asses, and mules, and 

 which is called glanders or farcy, according to the locality in which the 

 lesions induced by the virus develop themselves. 



The virus of glanders, which is identical with that of farcy, repro- 

 duces itself within any organism which it has infected, and the trans- 

 mission of the virus thus reproduced in one individual to another is the 

 most frequent, and indeed probably the only manner in which the 

 malady is propagated. In other words, glanders is a contagious dis- 

 ease, and probably is a purely contagious one. Its virus, like other 

 contagions, is insusceptible of demonstration under the microscope, or 

 by means of chemical analysis, and we only recognize its presence by 

 its effects. It is contained in the discharge of the farcy-buttons pres- 

 ently to be described, in the flow from the nostrils, the blood, and 

 ( Viborg) in the excretions, the saliva, urine, and sweat. Whether it 

 is volatile, and capable of pervading the insensible perspiration of the 

 .nfected oerson, is doubtful. The fact that the disease may be trans- 



