Handwritten notes on Cornish Pumping Engines, Ref. Dickers Mining Record, vol. 1, No 9 July 1862, Page 17. Notes give details of the Cornish Pumping Engines, actual horsepower, coal consumption and size of boilers.document, gold, mining reports, cornish pumping engines, dickers mining record vol 1 no 9 july 1862, sir charles lemon, consolidated mines, mr guy, phillips and darlington's record of mining