300 The American Naturalist. [March, 
Prof. Marsh’s house, to ‘‘go over his conclusions.’’ Questions were 
- asked and answered, new points were brought up by me and adopted, 
and when it came to the classification of Ungulata, I gave my opinion, 
which was mainly based on Prof. Cope’s work, introducing small 
changes only. I gave the classification with Prof. Cope’s names, as I 
informed him; but these were all changed by Prof. Marsh. ‘There is 
no doubt Prof. Marsh had never studied Prof. Cope’s papers on this 
subject, since he not only did not know the names of the orders, but 
he even asked how to spell them. That the descriptive part of the 
Dinocerata was mainly the work of Mr. O. Harger, I know. He made 
both descriptions and measurements of the different bones, which were 
used by Prof. Marsh when he wrote his text, or dictated it. It may be 
here a proper place to mention the language used by Prof. S. E. 
Smith, of Yale University, in an obituary of Mr. Harger, his best friend. 
“ His best work and highest attainments were in the department of 
vertebrate paleontology. Remarkable logical powers, an unbiase 
mind, and years of accurate observation, had given him a truly won- 
derful knowledge of vertebrata osteology. Under his hand the broken 
and disarranged bones of an unknown carpus or tarsus seemed to fall 
into their proper places by magic. But his knowledge was not one of 
details alone ; he had a truly philosophical grasp of the bearing of facts 
on evolution and classification, and only the few who knew his attain- 
ments can appreciate how much paleontological science would have been 
advanced had he been able to publish his observations and conclusions.” 
(Italics are mine.) I may mention here, that the statements of Dr. O. 
Meyer in regard to the Batrachia and Mammals from the Jurassic, and 
the oldest “ bird’’ Zaopteryx, are true. 
Now let us consider some papers of Prof. Marsh which were doubt- 
less written by himself. There is one on the Cretaceous Mammals. In 
this paper several times over three or four genera are made out of three 
or four teeth belonging to animals of one genus. Incisor, molar and 
premolar teeth of the upper and lower jaw are considered to belong 
to three or four different animals ; each representing a new genus. 
The discovery of Cretaceous mammals in great numbers (only one 
species was known before, which was found by Dr. J. L. Wortman, 
Prof. Cope’s former assistant) of course was a very interesting fact, 
and it is certainly this fact which induced Prof. Flower and Prof. 
Gaudry to write complimentary letters to Prof. Marsh. But the latter 
discovery is due entirely to Mr. J. B. Hatcher and Dr. C. E. Beecher. 
The description given by Prof. Marsh of these fragmentary, but highly 
interesting, fossils is simply ridiculous, and has been already criticised 

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