CHAPTER XIII.
_MAKING PAPER BY MACHINERY._
The Fourdrinier Machine--Bertrams' Large Paper Machine--Stuff Chests--Strainers--Revolving Strainer and Knotter-- Self-cleansing Strainer--Roeckner's Pulp Strainers--The Machine Wire and its Accessories--Conical Pulp-Saver--The Dandy-Roll--Water-Marking--De la Rue's Improvements in Water-Marks--Suction Boxes--Couch Rolls--Press Rolls-- Drying Cylinders--Smoothing Rolls--Single Cylinder Machines 133