Our slaughter-house system : a plea for reform / [C. Cash].

  • Cash, C.
Date:
1907
Catalogue details

Licence: In copyright

Credit: Our slaughter-house system : a plea for reform / [C. Cash]. Source: Wellcome Collection.

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    lime, chloride of iron, alum, chlorine, argillaceous earth, and many others. The many different processes in vogue may he gathered from the fact that no less than seventy-five precipitants are known and used. Of all these the most serviceable is lime. Sludge-pumps are always employed in sewage-works to remove accumulated deposits. The process of bacterial purification has for its object to cause the bacteria which appear during the process of putrefaction and decomposition to alter the matter on which they feed by dissolving its combination with nitrogen. The end in view is to effect a chemical change in the sewage as regards its composition, so that no further decomposition may take place. This process is also known as oxidisation, and has been adopted at many abattoirs. The results obtained with it may be generally regarded as good, but it is at the same time the most costly to employ. The electrical process must be referred to for the sake of completeness. For abattoirs, however, it is too expensive to be of practical use. Hojie for Lost Dogs. It is a very advisable measure, and one strongly recommended by societies for the prevention of cruelty to animals, to afford accommodation at the abattoir for lost dogs until they are either removed or destroyed. At the abattoir there are plenty of attendants to take charge of them temporarily, and also abundance of food. If the owners fail to appear, the animals are destroyed pain- lessly in a lethal chamber. This contrivance was invented in England by Dr. Ward Richardson, of London, and produces death painlessly by the agency of carbonic acid gas or chloroform.