2 THE NAUTILUS. 
canyon. The auto parties camp here, but the hotel, now owned 
by W. R. Hearst, is idle. The forest rangers’ camp is nearby 
but otherwise there is no settlement here at present. Sonorella 
coloradoensis (Stearns) was found at the type locality. Scenery, 
fine air and the yellow-blooming century-plant (Agave utahensis) 
were of particular interest. 
Tuba City was our next camp, and it was necessary to return 
to the San Francisco Mountains, 14 miles from Flagstaff to 
cross the Painted Desert. This is the fourth time we have 
passed this range with a peak of 12,794 feet and everlasting 
snow. Surely Oreohelix is up there in the quaking asps, but 
no conchologist has made a track so much as on the foothills. 
At Cameron (Tanner) crossing was made over the canyon, of 
the Little Colorado on a suspension bridge built by the govern- 
ment. There was but a thread of water in the muddy flats 
one or two hundred feet below. A little scratching here during 
the luncheon hour did not turn up anything in the rocks or 
drift. The road was fairly good and the autos hummed along 
merrily over wide stretches of black lava, pebbled agate, iron 
marbles and other geological curiosities, and at other stretches, 
for achange, painted canyon walls and miles of grotesque wind- 
made statues furnished entertainment. Although delayed four 
hours in starting we traveled 122 miles and went into camp 
early that day at Tuba. Purchased from the Mormons, this is 
now a government city of schools, agency buildings, an agri- 
cultural experiment station and a hospital. 
Sand is the chief product of Tuba City, but springs are 
numerous and the fields of grain and the orchards were thrifty. 
At the boiling spring in our camp a new Pisidium and Physa 
humerosa interioris, n. subsp. were gathered. Also cases of the 
case-fly and a fair collection of dragon flies. .A large scarlet 
species was the prize. 
John Lee, of Mountain Meadow memory, was one of the 
founders of Tuba. Later he established Lee’s Ferry on the 
' Colorado, and later again at Mountain Meadow met his Water- 
loo. On the rocks of Moenkoppi Wash is the village of Moen- 
koppi. The homes and stores of these ancient cliff-dwellers 
were closely inspected by the class, also their fields of corn, 
