Open-pan salt making from lead using wood as a fuel. In Britain they established towns for salt production at Droitwich in Worcestershire, and Nantwich, Middlewich and Northwich in Cheshire. In the early Middle Ages these developed into the 'wich' towns of Cheshire. Small 'wich' houses containing several lead pans to evapourate the brine into salt, clustered around brine springs within each of the towns. The open-pan process continued largely unchanged throughout the medieval period. A 17th-century German wood-cut by Georgius Agricola shows the process in detail. Excavated evidence has uncovered wooden rakes to draw salt crystals to the side of the pan, and
Suffix (name) CA is used for individuals who have completed the requirements to become a Chartered Accountant. The suffix CPA is also used for individuals who have completed the requirements to become a Certified Public Accountant. Similarly, Chartered Financial Analysts use the suffix CFA. Sommeliers (restaurant wine professionals) who have passed the Master Sommelier exam use the MS suffix. Engineers that are certified as a Professional Engineer in his or her state will use the suffix P.E., Certified Professional Geologists use P.G., Certified Professional Logisticians use CPL, and Chartered Engineers use CEng. Likewise, Registered Architects sometimes use the suffix R.A., or more