SYLVA OF THE UNITED STATES. 
West Wall. — A nearly complete collection of the Leaves, 
Fruits, and Woods of the trees of our country, accompanied by 
graphic maps showing the distribution of each species. This fine 
collection is arranged systematically, and affords an excellent op- 
portunity for comparison between allied woods. The richness of 
our sylva in oaks and conifers is strikingly exemplified. 
Cases 74 to 7 8 A. — A set of twenty monographs of North 
American trees. Each species in this set is illustrated by a large 
distribution map ; photo-micrographs of three sections of the wood, 
horizontal, tangential, and radial ; a branch in full leaf and fruit ; 
macroscopic sections of the wood in three planes, and a section of 
trunk showing the bark. 
Standards 79 and 79A. — Specimens of pine, showing the 
method of tapping for turpentine. 
Case 80. — Indurated fiber ware. Examples, crude and fin- 
ished, of the method of converting spruce wood into various house- 
hold articles. 
