Encyclopedia article on the calender, a machine of heavy rollers that gives a smooth, glossy finish to paper and to cotton and linen cloth. It describes the construction of paper and iron rollers, the lever and screw pressure systems, gearing for glazing, and how cloth is passed through a five-roller machine, with a related water-mangle for wet goods. The last pages cover a roll-grinding lathe using two corundum wheels to make calender rolls round and parallel.