88 POLE STEAM-ENGINE. 



The pole-engine was not only used in several mines 

 shortly after its first introduction, but Mr. Sims, the 

 leading -engineer of the eastern mines, not generally 

 favourable to Trevithick, advocated its application in 

 the traditional Watt district. 



Scarcely had he smoothed the way with one opponent 

 than another sprung up in an unexpected quarter. His 

 brother-in-law, Harvey, with his once friend, Andrew 

 Vivian, then a partner with Harvey, opposed his plans 

 at the Herland. They were annoyed at Trevithick's 

 sending his orders for castings and machinery to Bridge- 

 north, and may have had doubts of the success of the 

 new inventions. They had authority in the mine, pro- 

 bably as shareholders, a position generally acquired in 

 Cornwall by those who supply necessary mine material, 

 as well as by the smelters who buy the mineral from the 

 mines. The Williamses and Foxes, controlling the eastern 

 district of mines, were also shareholders and managers, 

 supplying machinery and buying the mine produce. 



[Rough draft.] 

 " gl Kj " PENZANCE, I3th December, 1815. 



"Yesterday I was at Herland, where I was informed 

 that Captain Andrew Vivian had been the day before, on his 

 return from Mr. Harvey's, and discharged all the men on the 

 mine, without giving them a moment's notice. Before the 

 arrival of the castings the pitmen, sumpmen, carpenters, and 

 smiths were very busy getting the pit-work ready ; at which 

 time H. Harvey and A. Vivian were exulting in reporting that 

 the iron ore was not yet raised that was to make the Herland 

 castings. The day that they heard of their arrival they dis- 

 charged all the labourers, and ordered the agents not to admit 

 another sixpence-worth of materials on the adventurers' account, 

 or employ any person whatever. 



" The agents sent a short time since to Perran Foundry l for 



1 Belonging to Williams and Co. 



