430 
ag = yx - (= wy) dp _ dy yds. 
x x 
Hence the element eis under a double sign of integration, 
must be replaced by = dpdy, which is equal to a 
since 
—yz=2. 
And as 
++ 25 -Sayz=l, 
1l+74+ @- ps 
x 
consequently 
dndZ 
\ ee re er dat eG 
This result is plainly analogous to the formula 
| de = tanh 
l+2? ; 
and might be expressed by putting 
a ee 
The Rev. Orlando Dobbin read a paper on his collation of 
the Codex Montfortianus. 
As it has been the controversy about the Three Heavenly 
Witnesses which has given such notoriety to this particular 
manuscript, Dr. Dobbin commenced his paper with an ac- 
count of that celebrated passage of arms, in which as much 
critical skill and polemic acerbity have been displayed, as in 
any religious or literary controversy of any age. Expressing 
his entire concurrence in the decision of such men as Porson, 
Bishop Marsh, and Bishop Turton, on the spuriousness of the 
