28 o 
Notices of Boohs. 
[April, 
these wonders of art. Nor could any draughtsman, however 
skilful and conscientious, accomplish, in any reasonable amount 
of time, the work here done by the camera in an instant. We 
need only cite, as instances in point, the view of “ Cathedral 
Spires, Garden of the Gods,” or of the “ Eroded Sandstones of 
Monument Park.” Perhaps the most wonderful production is 
the “ Mountain of the Holy Cross.” Such a happy rendering of 
a mountain tempest we should scarcely have imagined as pos- 
sible. Through dense storm-clouds and rain-torrents a broad 
gleam of sunlight streams upon the brow of the mountain, and 
upon the mists boiling up in the ravines below. The view of 
the Upper Twin Lake, Colorado, if of less geological interest, is 
not less wonderful as a work of art. The reflections of moun- 
tains and trees in the lake, the evening sky, and the smoke- 
wreaths ascending from the camp-fire of the Explorers, are truly 
wonderful. 
Nor are geology and physical geography the only branches of 
science upon which photography is thus shedding a new light. 
The archaeology of pre-historic races, the ethnography of tribes 
still existing, and not less the zoology and botany of sparingly 
explored regions, may all share in the benefit. 
We cannot better express our high opinion of these illustra- 
tions than by wishing that every scientific expedition, in what 
part of the world soever, may include among its staff a photo- 
grapher as skilful as Mr. W. H. Jackson. 
