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From Reply#15.. Yes, it is true that carbolic soaps such as Lifebuoy and Wright's Coal Tar are no longer available. The government and manufacturers (being aware of how 'conservative' the average Briton is) took pains not to publicise the fact, and those brands can still be bought. They do NOT, however, contain any of their old 'active ingredients', just artificial 'aromas' so that tablets of plain soap can be sold at an elevated price as 'medicated'. I discovered this when I noticed that Wright's soap no longer had any beneficial effect on my dry skin, and decided to do a bit of research.
The canned food for the Franklin Expedition was supplied to the Admiralty by Messrs. Samuel Goldner & Co. and they used (cheap) inferior solder to seal the cans, which contained an extremely high percentage of lead. This caused poor sealing of the cans, and also caused the alloy to be more readily dissolved into the foodstuffs.
From Reply#16.. Grease balls in the London (and other) sewers. I don't put ANY grease, oil or fat down the drain, but, sadly, many do. It's all part of the 'Don't know, Don't care' attitude that is now rife in this (once great) country. The education of our youngsters is (and has been for some time) so inadequate that few of them have the slightest idea what happens to materials poured 'down the plughole'... They just seem to magically disappear!! The result being that our waste water transport and processing plant is grossly overloaded at pretty much every point. :-(
All best
Dave T