Geology. ae 
open to essential changes in the original matter without the permission 
of the body to whom it is made—nor even then without indicating the 
changes made by a new date affixed thereto. This is such very common 
sense and usage that we should never have thought of enunciating it so 
formally had not the language of Mr. Hall’s communication led us to sup- 
oose that he, at least, did not recognize this well established principle. 
Let us now apply these principles to the case in hand. e 10th 
pA 1860—as appears from its title page—the “ Thirteenth Annual 
and 
port of the Regents of the University of N.Y.” “was made to the Sen- 
ate.” Appendix F, of this Report contains Mr. Hall’s “Contributions to 
Paleontology,” always looked for with so much interest by palzeontolo- 
pe world over. It was not, however, until early in 1861, that this 
Iteenth Report, in its present form, was distributed—our own copy 
came to hand Feb, 18, 1861, or about ten months after the date of its 
ntation to the Senate—a month earlier (Jan. 19th) we received 
. Hall’s memoir (‘ Contributions, é&c.’) in a separate brochure—from 
the author. We 1] i i i 
now for the first time, that certain “changes were made in Appendix F, 
in November, 1860”—and he states what in general these changes were, 
This 1s all that our criticism of last March charged. “Such changes,” we 
either in the text or on the cover of the Re As Mr. Hall admits 
ie changes in question, we have nothing farther to say on that point, as 
as the very subject of animadyversion r. Hall ars, however, 
the Senate April 10, 1860 !* ; 
: ; if the public has any right to know 
Oring beyond what is published ? it is sufficient to say, a public doc- 
ene on the principles above stated cannot be change from the orig- 
da eript without permission, and plainly indicating ithe parts 
ged. Mr. Hall seems to have persuaded himself that ‘a notice 
1 We would ask, . Goniatite limestone (p. 95 and 
following was not the whole chapter on the i 
) added as late in the year as the other changes admitted by Mr. Hall? 
