. Railway master mechanic . of his book isthat this foiiu .try and in Eui-. made by a French scientist with tan-nin mixtures as boiler scale removers led him to theconclusion that such mixtures injuriously attackboiler iron. A German ex|>eriinenter attacks thisconclusion, and while not advocating tannin for suchuses, urges that that substance has very little ten-dency to attack iron after the first contact, claimingthat the metal becomes immediately coated and pro-tected from further action. He contends that therisk to boilers from the use of tannin as an anti-inerus-tating
. Railway master mechanic . of his book isthat this foiiu .try and in Eui-. made by a French scientist with tan-nin mixtures as boiler scale removers led him to theconclusion that such mixtures injuriously attackboiler iron. A German ex|>eriinenter attacks thisconclusion, and while not advocating tannin for suchuses, urges that that substance has very little ten-dency to attack iron after the first contact, claimingthat the metal becomes immediately coated and pro-tected from further action. He contends that therisk to boilers from the use of tannin as an anti-inerus-tating agent has been greatly exaggerated. This isapparently a case of doctors disagreeing, and there isevidently room for further investigation into this sub-ject. THE RAILW^AY MASTER MECHANIC.
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Keywords: ., bookcentury1800, bookdecade1870, bookidr, booksubjectrailroadcars
