lO 
Cases 82 and 88 and Walls. — Timber tests. Standards 
representing the results of strain upon various species of Ameri- 
can timbers. 
Between Cases 83 and 84 may be seen the two broadest 
boards ever sawn, both being specimens of the sugar pine of Cali- 
fornia. Here also are exhibited several fine examples of plain and 
curly yellow poplar from Kentucky. 
Between Cases 84 and 85 various species of trees from 
Kentucky, Washington, Oregon, and California may be seen. Not- 
able among these are particularly large sections of madrona, 
beech, pecan, and sweet gum. 
Between Cases 85 and 86 are several excellent specimens 
of the commercial woods of Canada, notable among them the 
paper birch. 
Between Cases 86 and 87, British Columbia woods, repre- 
sented by several especially fine sections. Beyond Case 87, at the 
end of the Section, may be seen four excellent examples of the 
principal timber trees of Alaska. 
WALLS OF THE ROTUNDA. 
On the walls of the Rotunda will be found a framed set of 
herbaceous plants, each frame containing a family. They are ar- 
ranged in their natural order, beginning on the west face of the 
northwest corner and passing southward. This collection serves 
to illustrate the grouping of plants according to their resem- 
blances each to the other. 
On the floor of the north transept are two cases, one of 
lichens and one of mosses, each containing sufficient species to 
represent these classes of plants. 
On the floor of the south transept is a case of replicas of 
tropical fruits, accompanied in many instances by products gained 
from the different species. 
