22 
theories are propounded as to the time probably consumed in such changes 
taking place. 
Eev. Walter MiTCHELL.-It is, perhaps, a pity that some notes or 
discussion which Mr. Hopkins has sent us were not read previously M . 
Warington’s remarks. I think they contain some facts bearing upon tbe 
paper which will meet some of the objections of Mr. Warmgton. I shall 
now read them 
“ T EERES ™iAn ^anse^— Th^late^M^Arago,J;he^Fremih 
SgpSSE 
from the Journals of Arctic Explorers ~ 
large quantities of drift-wood from all climates. 
“ 'Rnfih records conveyed by the . Gulf Stream to the Arctic bea nave 
proved* tS^they never ^return, but are generally thrown on some of the 
*oa— The 
ipot to such changes as to necessitate the employment of a stall ol naval 
officers more or lets constantly, to ensure the safety of “Xk°m d 
of Australia is different from what it was in 
Even our local trigonometrical surveys are not completed belore tne nr 
maps require some correction and revision. 
I may say here, partially in defence of Mr. Hopkins, that whatever we may 
have to say with regard to the theory he has brought forward, we cannot but 
t.lmnlr him for the immense mass of facts he has adduced— facts of the greatest 
possible importance in coming to any decision upon such an important 
question. His theory may be faulty in many respects, but as these motions 
have been observed for so few years comparatively, (that is, the smaller 
motions, some of the most important,) we do not know whether they do 
occur at any regular rate or not, and it would require many years probably of 
careful observation before that rate is fully determined. I should not alto- 
gether, perhaps, myself be inclined to agree with Mr. Hopkins in one portion 
of bis theory, namely, the gradual spiral movement of the earth from the 
South Pole up to the North Pole, and then the dipping down of the earth 
through the earth’s axis. That is the way in which he accounts for his theory, 
and I think that escaped Mr. Warington— 
Mr. Warington.— I looked for it, and could not see it. 
Eev. W. Mitchell. — He says, “The globe, with all its elements, 
might have existed from eternity. The ocean and the lands emerging from 
the Antarctic Pole merge again into the Arctic Pole, and thus circulate from 
Pole to Pole through the medium of the earth’s axis.” This he gives as a 
