CHAPTER VI 



DISPOSAL OP EXCEETA 



This question presents a -wider aspect to the human than 

 to the veterinary hygienist. The former has to deal with 

 (1) the actual excreta of the population ; (2) the waste 

 waters from houses containing urine, soap, dirt, grease, and 

 organic matters from cooking operations; (3) domestic refuse 

 consisting of ashes, cinders, waste food, etc. ; (4) street 

 refuses ; (5) the solid and liquid refuse from manufactories, 

 stables, cowsheds, and slaughter-houses. 



The method adopted in many cities for the removal of 

 excreta is what is known as the water-carriage system ; 

 everything mentioned above excepting ashes, cinders, waste 

 food, and street sweepings, pass into the general drainage 

 system being carried forward by water. The other method 

 is the conservancy system, in which the fscal excreta of the 

 population is dealt with separately, while everything else, with 

 the previously-mentioned exceptions, passes into the drains. 



It is very evident from this that drains and sewers are 

 the monopoly of the medical officer, and that in towns and 

 cities excreta from animals pass into them as a matter of 

 general convenience. We have a joint interest with the 

 medical officer in the matter of sewers working well, but 

 their inefficiency or inadequacy is dealt with by him. 



The drainage arrangements of a stable are matters of 

 great simplicity compared to the complex methods which 

 have at times to be adopted in houses for closets, baths, 

 kitchens, etc., so that the aspect of the question from a 

 veterinary point of view is by no means a difficult one. 



On the other hand, where no general drainage system 

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