Be: 
In view of his statement wasting this pretended admission on = part, 
and of his former one made n m ea which in his 
of no moment, I commend to Mr. D.’s Senidtaatied the “id ican 
quotation from a daily paper, alluding to charges affecting the character 
of another. ‘‘'The hardihood and guilt of the assertion are equally eg 
e ‘ 
See also Mr. D,’s foot-note to p. 131.“ Mr. C. om He in his vindica- 
tion, that 4 whole subject of corals was in his hands, much to my sur- 
pri o doubt to the surprise of all who know that ‘sie structure of 
coral islan ds 3 is so far a geological question as to constitute an important 
chapter in all pi say Estee, ove point was Gonder so far set- 
at sea as never to have been m 
Here Mr. D. clearly accuses me of having claimed the paige - a 
laced 1 h I 
___., islands, or the geology of corals, as having | been pla my han t 
r is untrue that I ever advanced aa such absurd orenmaalias This i what 
I said, p. 379, Vol. xiv, “It must be borne in mind, that in the diarrhea 
tion of the various departn rtments of natural history among the naturalists 
attached to the expedition, the corals were especially pee to me. 
Their habits, growth, distribution, and all else connected with the eir his- 
tory, were consequently the subjects of my particular ne Is it 
not self-evident that [ here allude only to living corals, to corals zoologi- 
cally considered, and call attention to the fact of their being assigned to 
me, as offering a reason why I should naturally have been led to observe 
reefs and islands for Mr. D.’s info afta and it was his knowledge of 
this yistey led to the proposition by him o publish on this subject jointly 
with m think, however, this. was ‘eg just prior to our parting in 
Bidoer, and not as he states at Oahu. 
In another foot-noie to p. 133, alluding to my statement that I found 
thirteen fathoms water, with a bottom temperature of 76°, upon a shelf 
profusely covered with coral, on which we suddenly came in eit a 
the island of ‘Tutuila, Mr, Dana says ,—* By referring to the log-book o 
the Vincennes, I find that no eae was taken at any depth on the 
reef here referred to. The thirteen fathoms were obtained by a = 
alongside of the reefs the reef itself on which the coral is growing, varie 
in depth from 41 to 7 fathoms. (See expedition chants now publishing. : 
~ The coolness with fstioh all these particulars are applied to a shelf, not 
reef of coral, whose locality I have seo designated in Genes terms, is 
perfectly inimitable. But with all due espect for Mr. Dana’s penetration 
the ‘expedition charts now on bhai T take ‘ase to say that 
their reef with 44 to < fathoms, and 13 fathoms alongside, &c. &c., is not 
“the reef here referred to” by me, which was a shelf of coral running out 
rom the shore and gradually deepening, apparently from a few inches to 
thirteen fathoms. On this 1 sounded repeatedly, and obtained as nearly as 
‘Tcould éstimate from the rude manner of my making the trial, 76° as a 
bottom temperature. The position and character of this shelf I “pene 
specify hereafier, But, says Mr. D., ‘ by referring “ the log-book o 
Sonn I find that no temperature was taken a or: dep pth.’ By it in- 
