9/8 The American Naturalist. [November, 
The "bone yard" was found by cattlemen who were looking 
up stock which had wandered into this forbidden region, and many 
of the best specimens were carried off by them and lost to 
science. The first naturalist who visited it was Professor Thom- 
as Condon, of the University of Oregon, at Eugene, who, with the 
care for scientific research which has always distinguished him, 
saved many good specimens and brought them home to his 
museum. One of these was part of the jaws of the remarkable 
llama, of about the size of a mule, which I called Eschatius longi- 
rostris. Subsequently my assistant, Mr. Charles H. Sternberg, of 
Lawrence, Kansas, visited the place, and made what is probably 
the largest collection ever made there. In this I found three 
species of llamas, the Holomettiscus hesternus Leidy, previously 
known from California, as large as a camel ; and the H. vitaken- 
anus Cope, as large as a vicugna, which I dedicated to my 
friend Mr. Whittaker. The third was a curious species, the size of 
a camel, which I also found in the collections made by MM. Cas- 
tillo and Barcena in the Valley of Mexico. I called it Eschatius 
conidens. There were two species of true horses (Equus) both 
extinct ; and a hugh sloth {Mylodon sodalis, Cope) as large as a 
grizzly bear. The mammoth {Elcphas primigcnius Blum.) was 
represented, together with numerous smaller mammals of species 
both recent and extinct. There were coyotes, otters, beavers, 
gophers (Thomomys), voles and rabbits, and the phalange of 
a bear; but no peccaries, tapirs, raccoons or opossums, which 
one would find in similar company in corresponding beds 
in the eastern states. Then there were multitudes of bones 
of birds and of fishes. These were all of existing genera and 
often species. I detected a few novelties, as a swan {Cygnus pa- 
loregomis) ; a goose, {Anser hypsibatus), and a cormorant, {Phala- 
crocorox macropus). One of the most abundant species was 
a grebe, which I could not distinguish from the one so commonly 
seen in Silver Lake, {Podiceps occidentalis Lawr.). Other species 
still await determination. Of the fishes, all belonged to the 
families of chubs and suckers, and several of them to species still 
living in the Silver and Klamath Lakes. 
