XVI REPORT UNITED STATES GEOLOGICAL SURVEY. | 
has been connected with the Survey as its photographer during the past 
nine years. 
Leaving Point of Rocks, on the Union Pacific Railroad, on July 24, 
the first points of interest were reached on the western flank of the 
Wind River Mountains. ‘Two side trips, undertaken in connection with | 
Mr. Wilson, in charge of the primary triangulation, were made to the 
crest of the range, and some grand views of that remarkable region 
were obtained. From the summit of Frémont’s Peak views were made 
of an immense glacier now occupying its eastern slope. Fine views 
were also obtained of the great glaciated plateau lying between the 
plains and the crest of the range. 
Proceeding next to the vicinity of the Grand Tetons, lying to the east 
of the headwaters of the Snake River, several magnificent views of the 
remarkable range in which they occur were made from the neighborhood 
of Jackson’s Lake. 
Reaching Shoshone Lake the 18th of August, the entire month follow- 
‘ing was devoted exclusively to the careful photography of all the remark- 
able phenomena connected with the hot springs and geysers of the vari- 
ous basins within the Park. Especial attention was paid to the almost 
unknown but exceedingly interesting features of the new Shoshone and 
Red Mountain Basins. The “Fire Hole” and “Mammoth Hot Spring” 
Basins were again gone over, and the experience derived from the work 
done here in former years shows its benefits in the remarkably effective 
views obtained this season. At this latter basin many detailed as well 
as general views were made with especial reference to the future pro- 
duction of an exact model in plaster of the whole group. 
On the homeward route, which was by the way of the Upper Yellow- 
stone, across the headwaters of the Snake to the Wind River and thence 
via Camp Brown to the railroad, a number of: very effective views were 
made, particularly about the Grand Falls and the cation of the Yellow- 
stone. At the Yellowstone Lake some very fine views were made, but 
that region was left somewhat incomplete in por et sates of a prolonged 
snow storm. 
At the Togwotee Pass some characteristic views were obtained of the © 
remarkable breccia mountains, whose castellated forms adorn that por- 
tion of the continental divide, and also some of the curious “bad lands” 
farther down on Wind River. The season’s work closed at Camp Brown, 
where'some excellent portraits and groups were made of the Bannock 
prisoners in confinement at that post. 
A brief summing up of the season’s operations of three months, much 
of which time was characterized by extremely inclement weather, shows 
an increase to the already very extensive collection of the survey, of 45 
negatives 11 by 14 inches in size, and 110 of smaller ones, 5 by 8. The 
number was purposely kept small that a better quality might prevail in 
them. 
The geologist in charge accompanied the photographie division, and — 
