HOLLAND AND PETERSON: OSTEOLOGY OF THE CHALICOTHEROIDEA. 225 
the summer of 1905 in his opening on University Hill. For this specimen he has 
proposed a new specific name, calling it Moropus cook: in honor of Mr. James H. 
Cook. Professor Barbour says: ‘‘Marsh’s Moropus elatus was found at Fort 
Niobrara, Nebraska, hence in supposed Upper Miocene, while the one presented 
here was found at Agate, Nebraska, in supposed Lower Miocene. The difference 
in geologic horizon seems sufficient to warrant belief in difference of species.”’ 
In what way Professor Barbour derived the impression that the types of Professor 
Marsh came from Fort Niobrara and from a higher geological horizon he is unable 
to explain, as he has frankly stated to the writer in private correspondence. Mr. 
Peterson having positively expressed the opinion that Professor Barbour was 
mistaken in this matter, the writer took steps first of all to ascertain through 
Professor R. §. Lull when and where the types of Moropus elatus were collected. 
In the first reply received from Dr. Lull he stated that all that he could report was 
the fact that the specimens had been collected by Mr. H. C. (Hank) Clifford in the 
spring of 1875 and forwarded to New Haven from ‘‘ White River Station.’ Dili- 
gent search of gazetteers, maps, reports of United States Indian commissioners 
and agents, and the records of the United States Department of the Interior, so 
far as accessible, failed to show the existence of a ‘‘ White River Station” in Nebraska 
unless under this name were intended the military post on the White River in the 
vicinity of Crawford, Nebraska, now Fort Robinson. The writer then took steps 
to ascertain whether Mr. H. C. Clifford might still survive and be able to give 
any information in regard to the matter. The result of inquiries directed to the 
commandant at the Red Cloud Indian agency was the discovery that the death of 
Mr. Clifford had taken place in 1905. Just after getting this information the writer 
was pleased to receive from Professor Lull a letter under date of November 6, 1908, 
in which he says: 
“Dear Doctor Holland: I have found Clifford’s correspondence and bill of lading of the lot of 
material sent in with the Moropus type. 
“On March 13, 1875, Mr. Clifford was at Crow Buttes, eight miles east of Red Cloud agency, 
from which he sent a letter announcing his intended departure ‘in a few days’ for Sydney, Nebraska, 
with two wagon-loads of bone. The shipment was made from Sydney on the U. P. R. R. (not White 
River), the bill of lading bearing the date of April 2, 1875. As the Moropus specimen was collected 
March 21st or 24th" it must have been en route from Crow Buttes to Sydney, presumably where 
the trail crossed the Niobrara River. 
The Red Cloud agency is indicated on Rand & McNally’s map of South Dakota, dated 1890, 
The field-label in Mr. Clifford’s handwriting bears date of March 24, the label written in Professor 
Marsh’s handwriting gives March 21 as the date. Professor Marsh’s date may well have been a lapsus calami, 
and the slight discrepancy does not possess any importance. 
