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[Page 36]

turned from Germany & is I think much improved. On Sunday I sought for Crow but did not find him. I went up with Harry Mennel [sic] to the Spital tongues Colliery & got from him a good deal of information about coals. [15] This morning I went to the factory & got a syringe, & trammels to try an experiment with on the Darlington Engines. It is to try this regularity with. Usher is making me some apparatus to be sent on Wednesday.

News has just arrived of Sir Colin Campbell[’]s arrival at Calcutta, & of another victory before [struck through] by General Havelock.

Sept 15. Last night I called on Mr John Dixon [16] at

[Page 37]

Belle vue: the old man talked a great deal; he is just one of those who only need winding up occasionally, & they will talk for ever. It was all very interesting to me, because it was upon engineering. Mrs Dixon was very gracious.

My apparatus for testing the regularity of the engines has failed for want of good enough instruments. I got a syringe from the works, with a cock on the bottom, & I tried it with a weight on the piston rod, it yielded equal distances, in equal times; but I found so much variation, that it would be useless to continue the experiment. On examining the syringe, we found that it was not bored out at all, but just made out of brass tube

[15] The Spital Tongues Colliery was located in Jesmond and owned at the time by Edward Richardson & Co. It closed in 1858. See http://www.dmm.org.uk/colliery/s068.htm.

[16] The engineer John Dixon (1796-1865) joined the Stockton & Darlington Railway in 1821 and was chief assistant to George Stephenson during the construction of the Liverpool and Manchester Railway. During the 1840s he was superintendent of the locomotive works at Shildon. He lived at Belle Vue, Darlington.

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