Jul. 80, U. S. Dept. of Agriculture 
Plate VII. 
Fibers of an Under-Cooked Pulp Produced with a Small Amount of Caustic 
Soda. (Cook 9.) Magnified 65 Diameters. 
Note the vessels with well-defined markings and the ray cells holding together a group of fibers 
constituting a shive. 
