TY - GEN digital ID - 139415913 TI - A treatise on the Cornish pumping engine, in two parts AU - Pole, William AU - Tredgold, Thomas AU - Gale Cengage Learning PY - 1844 PB - London J. Weale DB - UniCat KW - Mine drainage -- England -- Cornwall (County) KW - Pumping machinery KW - Mine pumps KW - Tredgold UR - https://www.unicat.be/uniCat?func=search&query=sysid:139415913 AB - ER -