Edward Drinker Cope. — Eraser. 1 1 3 
had a parrot and monkey time with over the Naturalist, and 
the end is not yet." * * 
"Phila., July 23, 1887. Dear F. Your reply to is both 
pointed and just; in fact just what he ought to have. I would with 
your permission publish both, were it not that it is I think best at 
present to avoid consolidating the Survey opposition." * * 
"West Falmouth, Mass., August 23, 1887. Dear F. Your 
article will go in all right, if possible; I will probably have to cut 
something else. It should go in at once. * * Some of my friends 
are exerting themselves to secure for me the place to be shortly 
vacated by Langley in the Smithsonian. He will in all probability 
become secretary of the S. I. and the place of Asst. Sec. will be 
vacant. G. Brown Goode will become director of the National 
Museum and Chief of the U. S. Fish Commission, but some one will 
be necessary to fill the other vacancy. The person must also be a 
Naturalist, since Langley the sec, is a physicist. 
If you feel disposed to aid me in this a few letters from you would 
prove very valuable." * * 
"West Falmouth, Mass., September i, 1887. Dear F. I have 
just seen your review of 's address and I am glad to see you 
advertise his nonsense * * Also I don't believe that geologists 
now-a-days regard Upper and Lower Silurian as parts of one system, 
any more than they regard Upper and Lower Merion as more alike 
than any other two places, or N. and S. Carolina." * * 
During 1887 Prof. Cope published fort}-eight scientific pa- 
pers. 
"Washington, D. C, June 10, 1888. * * Every mental process 
costs physical energy, the act of willing among the rest; but is there 
any relation between the energy (measured by weight or momentum) 
and the nature of the thing willed? It can be shown that there is 
none, and to show this is the object of my paper. To prove this is to 
prove the superiority of mind over the law of the conservation of 
energy, and that is to give mind a controlling influence in the uni- 
verse, which it would not have if it were not so superior. Others hold 
the same opinion, but their views are speculative and not brought 
into connection with modern science." * * 
During 1888 Prof. Cope published forty-nine papers. 
"Phila., March 28, 1890. Dear F. I enclose your MS. with .1 
few comments on the margin. I think the Open Court will publish it. 
I have been in Washington and the Sec. Interior told me that he 
was satisfied that my collection belonged to the U. S. Govt! This 
huge steal appears to have taken strong hold in Washington. I have 
put the thing in the hands of and I return to-morrow, and will 
place the facts in the hands of several members of the House Comms. 
on appropriations. I will busy myself in exposing this villainy. For- 
tunately I have some strong ammunition." * * 
