Practical Paper-Making: A Manual for Paper-Makers and Owners and Managers of Paper Mills, to Which Are Appended, Useful Tables, Calculations, Data, Etc. E-book. Formato PDF George Clapperton   -  Forgotten Books, 2017  - 

Special attention may be invited to the illustrations of the Microscopical Examination of Paper and Paper-making Materials, which have been repro duced from micro-photographs.