ae ee 
the produetion: ofa ‘modern volcano, and having all the ‘appearance of ‘the 
lighter scoriaceous ‘lavas of Mount Aitna, br Sent ‘and. other volcanoes. 
of the 
The faces of the walls were reddened ' and glazed by the fire, in which they 
‘had been melted, and which had left them coutorted and twisted by its 
-wiolent action. — 
_ Our route during the afternoon was a little fie being (in the direction 
owe had taken) over’ a voleanic plain, where our ‘progress was sometimes 
-obstructed by fissures?and ‘black beds composed of fragments of the Be 
On both weigh: the mountains ‘appeared very broken, but tolerably wel we 
timber an 
ayy ugust 26.—Crossitig a point of ridge which makes in to the ri 
ell apo ere, San before sunset, and encamped on the right bank, + it 
‘the encampment of three lodges of Snake Indians ey visit 
during t sbvenidg, and ‘we obtained from them a ‘small quantity of rats 
“of dit asda baxens tres for goods. Among them was a sweet root 
of'very pleasant flavor, having somewhat the taste of preserved quince. 
“My endeavors to become acquainted with the plants which furnish to the 
‘Indians‘a portion of their support were only gradually successful, and af- 
ter long and persevering attention; and even after obtaining, I did not sue- 
ceed in preserving them wnti! they could be satisfactorily determined. Th 
‘this portion of the journey, 1 found this particular root cut up into such 
“small pieces, that it was only ‘to be identified by its taste, when the bulb 
“was met with in perfect form among the Indians lower down ee the Co- 
Aumbia, among whom it is the highly celebrated kamds. It was long “ai- 
sterwards, on our return through Upper California, that 1 found the plant 
‘itself in bloom, which I’supposed to furnish the kamis root, (camassia es- 
-culenta.) The ‘root diet hada rather mournful effe tt atahe commence- 
‘ment, and one of the calves was killed this rehing for food. The animals 
‘fared well on rushes. 
August 27.—The morning was cloudy, with appearance of rain, and 
ahe thermometer at sunrise at 29°. Making an unusually early start, we 
crossed the tiver‘at'a good ford ; and, following for about three hours a trail 
“which led along the bottom, we ‘eritered a: labyrinth of hills below the mafh 
‘Tidge,-an nd halted to'noon in theravine of a pretty little stream, timbered 
with « of a large size, ash-leaved maple, with cherry and other 
rabt of y weather, which had prevented any very extende 
views since enter! Green ti river valley, began: now to disap peas “Thy 
was a slight rai the eater part of the day, and at noon, when the ther 
‘mometer had risen nee a 2 hada a ad sun, wa blue me ae at 
