104 ANIMAL COMPETITORS 
“The ingenuity and skill displayed in the construe- 
tion of this nest, and the curious taste for articles of 
iron, many of them heavy, for component parts, 
struck me with surprise. The articles of value were, 
A ROCKY-MOUNTAIN PACK-RAT. 
From Warren’s ‘‘Mammals of Colorado.’’ By Permission of @. P. 
Putnam's Sons. Photo by H. W. Nash. 
I think, stolen from the men who had broken into 
the house for temporary lodging. I have preserved 
a sketch of this iron-clad nest, which I think unique 
in natural history. 
“Many curious facts have since becn related to me 
