CONTAGIOUS AND EPIZOOTIC DISEASES. 3 



'Jo the first class of exotic maladies belong : Small-pox^ m 

 sheep and birds ; the lung-fever or contagious pleuro-pneumonia 

 of cattle ; the Rinderpest or cattle-plague ; the malignant disease 

 of the generative organs in solipcds ; and malignant cholera in all 

 animals. These demand separation, destruction and disin- 

 fection. To the second or less fatal class of exotic maladies 

 belongs : the Aphthous fever or foot and mouth disease. This 

 demands seclusion and disinfection. 



Besides these maladies, there is a very important class which 

 are apparently generated in America and thereafter spread 

 by contagion. Among these may be named : Glanders and 

 farcy, canine madness, contagious foot-rot, tuberadosis, malignant 

 anthrax, Texan-fever, intestinal fever of swine or hog-cholera, 

 influejiza, strangles, canifie distemper, and perhaps the variola 

 or pox of horse, cow, goat, pig, and dog. All of these down to 

 intestinal fever of swine, like foreign contagious affections, 

 demand separation and disinfection, with destruction or not 

 of the diseased, according to the severity and diffusibility of 

 the particular malady. The remainder, from influenza onward, 

 are either too mild to warrant such measures, or too easily 

 spread to be satisfactorily controlled by them. 



It is beyond the purpose of this work to enter into the 

 special legislative enactments necessary to prevent the import- 

 ation of foreign plagues, or the spread of native or imported 

 ones. A few words on disinfection are, however, indispensable. 



DISINFECTION. 



The first and main object in disinfection is to secure 

 perfect cleanliness. From the buildings, cars, loading-banks, 

 ships, quays, yards, manure-pits, drains, cess-pools, harness, 

 clothing, utensils, etc., all decaying organic matter should 

 be removed by scraping, washing, emptying, etc., as such 

 decomposing organic matter is the food which sustains and 

 presers'es the disease germs out of the body. Even the 



