1H8 Tite jhnerlcan (Tfologtut. Kdiniary, isiw 
After the pfes'ulcMitial address llic i-cadiiiu' of papci's was re- 
sumed: 
W. H. ('. Smii'ii 'I'lie Arcluean rocks west of lake Superior. 
Tliis pa[)er ^ave a brief description of the rocl<s iuul (heir distribu- 
lion between the hike of the Woods and lake Siii)erior north of the 
international boundary and referred to some of the theories of orifjin 
and structiu'c of the various members of the Archaan system and to 
the iron ores and gold-bearinj^ rocks of the ref^ion. 
Ai/KRKi) Vi. Bakf-ow — The relations of the LaurcMdian and lluron- 
ian rocks north of lak(> Huron. 
In this pii|)er, which is ji revision and extension of one published in 
the .V.MERKAN (teoi.o(;ist of July, 1890, the writer traced the line of 
junction between the Laurentian and IIurt)nian from Killarney (Shi- 
boananing) on lake Huron, to Wahnaj»it;i' station on the ('anadian 
I'acitic railway (12 miles east of i^udbury). Brief descriptions were 
also given of the contacts exposed near Straight Lake station, and in 
the vicinity of Thessalon, Ont. The various phenomena were de- 
scribed in detail, and the general conclusion arrived at that the Lau- 
rentian gneiss is of irruptive origin and was in a magmatic condition 
at a time sul)se(|uent to the hardening of the lluroniau sediments. 
There is thus no (.|uestion as to coid'ormity or unconformity l)etween 
t hese two great divisions, as the contact, wherever exi)Osed shows 
abundant evidence of the intrusive nature of the gneiss, breaking 
through and altering the lluronian (|uartzites. 
('. R.Van Htsk — The voleaiiics of the Huroniau south of hikt; 
Superior. 
On Friday iifteriioon Mr. W. J.Mcdeegave an interesting account 
of the work of the U.S. Geological Survey, both inregardto the gen- 
eral plan of its execution, and the scientific results aimed at or al- 
> ready attained. The beautiful new atlas of portions of Tennessee 
was shown to give a clear idea of what was being accomplished with 
tlu! coml)ined efforts of the topograj)hical and the geological staff's. 
The next paper was: 
('. WTi-LAHi) Hayes and M. K. ('Avii'i$ei,I; — (jeomorphology of 
the southern Appalacdiians. 
This was presented by .Mr. Hayes, who gave a clear and instructive 
account of tlie changes of level and configuration that the southern 
.Vl)palachian country has undergone in post-.Mesozoic times. 
At half past thi'ee the society adjourned and the members went 
to the Government house where lady Stanley was giving an at 
lio'ine.^ "to meet the members of the Geological Society of Amer- 
ica.'" The toboggan slides and skating and curling rinks were 
open, while the drawing rooms were bright with the beauty of the 
Canadian capital. Here two I'xceedingly pleasant hours were 
spiMit. enjoying the hospitality of the very charming English lady 
who is at present the leader of Canadian society. 
On Friday evening, December lUl, the final meeting of the 
society was held, when the following papers were read: 
James MrFiVov— Notes on the (rold range in British C<)lund)ia. 
.V short description of the toi)ogra|)hy of the gold range and part of 
the adjoining interior plateau country, with notes on the glacial ge- 
ology of the sam(\ 
