238 



THE NATIONAL GEOGRAPHIC MAGAZINE 



in the coating-room 



This picture shows the rolls of paper made on the machine shown on page 237, just 

 starting on the coating-machines. The paper passes through a bath of coating material; then 

 through felt-covered rolls ; then between vibrating brushes, which lay the coating material 

 evenly and smoothly on the paper. It then passes out at the left into the drying-room (see 

 following illustration). 



THE DRYING-ROOM IN THE COATING MILL AT LAWRENCE, MASS. 



After the paper has received its coating from the coating-machine shown in the previous 

 picture, it passes in a continuous web to the drying-room. Blasts of hot air coming out of 

 galvanized ducts beneath support it for a distance of 100 feet, until it reaches the drying- 

 chamber in the rear of the room. Here it hangs in festoons much like those of cotton cloth 

 shown on page 219. In the picture the paper is passing from right to left. After leaving the 

 drying-room it is wound on rolls, as shown in the next picture. 



