6 THE NAUTILUS. 
around the base of the mountain on horseback to the Rainbow 
Bridge. On the mountain top an Oreohelix depressa came to 
the surface following a shower of rain, in every way almost 
identical to the shells found by Henderson and Daniels at 
stations 22 and 23, 1915, near Ogden, Utah. The forest rub- 
bish about the springs was alive with Pupas and Zonitids and 
Vallonias. A few Oreohelix yavapai neomexicana Pils. were in 
the rock slides. 
The outlook from the crest overlooked the Rainbow Bridge, 
the canyons of the San Juan, other canyons, bridges, caverns, 
domes, sunlights and shadows, white, brown, and all the reds 
and all the shades of the amethyst. Also the plateaus beyond 
the Grand Canyon, the Henry Mountains, 11,410 feet, the Blue, 
11,445, Aquarius 10,100, LaSal 12,271. Also the white and 
black mesas and the Carrizo mountains to the south and east 
were in view. 
The Rainbow Bridge is in the strict rainbow form and with 
some of its colors. But 30 feet in thickness, with its 309 of 
altitude and 208 width, in lightness of architecture it seemed 
something of steel. The average camera does not give an 
accurate estimate of sharp hillsides and scenery large as this 
bridge. 
It rained a little these evenings, but the bridge kept us dry, 
and at a camp in Surprise Canyon blankets were spread in 
wind holes of the cliff. To imitate the swallows, heads and 
feet were made to peep outa little. At the bridge one of the 
party imitated the pack rats for a little while and for the first 
time in his desert experience made a complete collection of fleas. 
The chute of Zane Grey is an interesting feature of this trail, so 
narrow it seemed the walls in passing could be touched with 
either hand, and so high the passage was gloomy. Abduction 
Cliff and the balanced rock that exterminated the wicked band 
were true to photographs, one on the trail the other at Navajo 
Creek, thirty miles away. 
In fiction, details in scenery and character should be true to 
life, though a little latitude may get through of a geograph- 
ical character. We know Grey’s Roaring River, and we 
camped for weeks at the corral he helped to build for Silver 
