392 The American Naturalist. [April, 
length. It should be further stated for your information that the 
author of this greatest of femora allowed this mistake to remain 
* uncorrected in the proof-of Dana’s Manual of Geology, which was 
submitted to him, after he and all around him could not help knowing 
it was false. [Figs. 3, 4.] And you students in universities and 
colleges throughout the world may turn to page 433 of Dana’s Manual 
of Geology (third edition) or to page 462 of LeConte’s Elements of 
Geology, or to page 779 of Geikie’s Elements of Geology (not to 
mention other authors, for who can follow a deception through all its 
infinite ‘ramifications !) and may draw your merciless pen through 
‘‘more than eight feet high’’ and write ‘‘ more than six.’’ 
$ 

G. 3.—Femur of “Atlantosaurus” immanis asit stands in the Peabody Museum to- 
day cone than six feet high). 
shat TO Oeae y pps wai ae immanis (more than eight feet high), sent 
In ordinary cases the world would relegate this to the category of 
mistakes, but when the fragments refuse absolutely to go together, and 
when a skilled foreign modeler tries for days to reconcile fact with 
fiction, and tells his employer so, and when he ‘ must match the 
pieces” by building them up with modeler’s clay, then it is that the 
mistake looks so deliberate that the world withdraws its mantle of 
charity. 
