Edward Drinker Cope. — Frazer. 93 
"My health is greatly improved and I have the ravenous appetite 
the plains always produce. Wild horses are not scarce; we have seen 
them three times. Indians peaceable with the whites, but the Ara- 
pahoes and Utes are at war, and for an exception the latter have been 
successful. 
"To-morrow I go to Evanston, At this place there is a great puzzle 
as to the limits of the Cretaceous and Tertiary formations. Indeed 
this whole country seems to furnish closer connections between the 
two than any other; hence there are differences of opinion as to the 
boundary line. Last summer I made some important progress in 
proving that what many called Tertiary was really Cretaceous. If you 
do a good thing it is either not true or done long before! Progress is 
only made in spite of annoyances from parasties and jackals; but it 
is a good discipline to learn to bear with them, as our great Example 
did with the Jews. However He denounced them sometimes." * * 
Pueblo, Col., September z},. 1873. 
"Dear Brother: Yesterday I had secured 103 species of which a 
large p. c. are new (at least 75). It is in fact a great new fauna, whose 
position is probably intermediate in time between the Bridger and 
Nebraska groups. 
"First day December 14, 1873. "Dear Father. Thine of sixth day 
is at hand, and I report progress. On reading it I wrote at once to 
Gilbert Cope, giving my views of immortality on a materialistic basis, 
as the one on which he probably reposes his disbelief in it. I can see 
no possible reason for rejecting it in the most advanced materialism, 
so called; although it may be in large measure unknown, I do not be- 
lieve that it will always remain so; or that it is unknowable. 
"As to the learned professor of 'Copeology.' I will correct his er- 
rors when they come in my way, as is the custom of naturalists; and I 
expect the same treatment. This need not and should not excite any 
personal feelings in any person normally or properly constructed; un- 
fortunately—is not. Unfortunately I say, because he makes many er- 
rors, and is so deficient, that he will always be liable to excitement 
and tribulation. I suspect that a hospital will yet receive him." 
The following is probably the letter referred to in the last com- 
munication. 
Haddonfield, N. J., December 13, 1873. 
"My dear Cousin * * The question of immortality interests me 
as I look on it from the evolutionist's standpoint, and to thee it must 
have more than a speculative interest as thee nears its confines. To all 
of us it is a subject very difficult to obtain any light upon, as the 
present state of human knowledge offers few tangible points upon 
which we can seize in order to commence investigations. To suppose 
on this account that there is no such thing as the future life appears 
to me to be a non sequitur, and as unphilosophical as to have denied 
the possibility of the science of molecular physics, as might have been 
done twenty years ago. How often have I heard persons say that we 
