ME A oe as | eee, eh Ne ae 
ad ' = S 
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Colorado River of the West. 403 
rived. Near our camp 84 is the most interesting group of these craters 
met with on our route, (see p. 402). Several of them are still very perfect 
in form, and long sinuous lines of black lava run down their sides— 
graphic records of their latest eruptions.” 
work, in too many cases, falls into incompetent hands. Proofs 
of engravings of objects of natural history ought always to be 
submitted to the careful inspection of the author or to some 
competent naturalist who shall have the power to accept or 
e. 
We think we see in the future the dawn of better things, when 
Mere political influence shall not control the publication of pos 
scientific works with the proper execution which the 
honor is inseparably connecte 
