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He went away unconvinced, to make a further enquiry and returned later in the day to report that the fish in the canal died every year in the spring when a certain distillery dumped its waste into the canal. Thus did former experience with starch mills pouring their effluents into Ontario streams and killing fish prove of unexpected use.
After a long series of experiments, iron plates were used as electrodes, with remarkable results, for the compounds of iron formed not only deodorized the samples of sewage acted on, but produced complete precipitation of the matters in suspension, and also of the soluble organic matter; the resulting effluents remaining perfectly free from putrefaction.
With Louisiana the United States gained control of the entire country watered by the Mississippi and its effluents. With the settlement of the western country, the Mississippi river assumed its normal function in the national development, forming out of that region the backbone of the Union. The Atlantic and Pacific States can never destroy the Union while the Central States remain loyal.
Notice my text, 'come ye to the waters' ... 'buy wine and milk. The great fountain is set up in the market-place of the world, and every man may come; and whichever of this glorious triad of effluents he needs most, there his lip may glue itself and there it may drink, be it 'water' that refreshes, or 'wine' that gladdens, or 'milk' that nourishes.
The hygiene work of the laboratory is also of a varied character: It consists of the examination of water supplies, milk and foods; the detection of poisons in water, and, occasionally, in human beings; the evolving of methods to purify effluents discharged into streams; work on poison gases and methods used to combat these, and many other things.
We understand that from careful experiments on a large scale, extending over a period of two years, the cost of filtration, including all expenses, has been found to be not more than about 6d. per ton of wet sludge. A number of specimens of waste liquors from factories with the residual matters pressed into cakes, and also of the purified effluents, are exhibited.
The chain of Niphates "the high grounds over the effluents of the Tigris and Euphrates" where Shalmaneser set up "an image of his majesty," seems still to be the furthest limit. In other words, Armenia is unconquered, the strength of the region and the valor of its inhabitants still protecting it from the Assyrian arms.
Hitherto it has been found that of all the appliances and methods for separating the liquid from the solid matters, whether it is in the case of effluents from tanneries and other manufactories, or the ocherous and muddy sludges taken from the settling tanks in mines, some of which contain from 90 to 95 per cent. of water, the filter press is the best and the most economical, and it is to this particular process that Messrs.
Carter Bell's report has gone in, and although he is precluded also from giving full details, he has kindly put at my disposal samples sealed by him of the effluents produced by the electrical treatment, which I now submit, together with the analyses in the table. The samples are taken at random.
From Fort Halkett, a route has been established to the post at Pelly's Banks by means of Dease's river which is one of the effluents of the Riviere aux Liards and partly by canoe navigation and partly by "portage;" the continent can be crossed in this northern latitude.
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