950 General Notes. 
the Geological Map of Europe. In the afternoon, excursions tu 
indsor and to Eton, by invitation of the Professors of Eton 
College; to Kew, and to Erith, Crayford, ete. 
September 21st, Friday.—In the afternoon, reception at the 
rooms of the Geological Society, Burlington House, by the Presi- 
ent, Dr. W. T. Blanford. 
The results of the congress are thus summed up by the President, 
Professor Prestwich :— 
e said: We approach the end of the congress, and we can now 
congratulate ourselves upon the results obtained. The first sitting 
was devoted to the discussion on the divisions of the Cambrian and 
Silurian systems, and although no vote has been taken, the opinions 
expressed have demonstrated that all are in accord for retaining the 
three groups or zones of Barrande and Murchison. But the neces- 
sity is not seen of making, as some members proposed, the interme- 
diate zone a separate system. Thus the status quo of the Upper 
and Lower Silurian for the beds as far as the Tremadoe, and of the 
Cambrian for the group below, will not be affected. Two sittings 
have been devoted to the discussion on the origin of the crystalline 
schists by hydrothermal chemical action or by movements, for each o 
which causes powerful arguments have been advanced. The congress 
had received and printed in advance memoirs by eminent geologists, 
which will be valuable documents in the solution of this important 
problem. Another sitting took cognizance of the connection 
between the Tertiary and the Quaternary, the result of which 1s 
that, although opinions are divided, the majority of members 
approve of retaining the term Quaternary. Although in these 
cases votes had not been taken, the discussions had a great interest 
in the demonstration of the ideas which predominated among the 
most distinguished geologists. According to the resolutions adopted 
by the Committee on Voting, it will be easier in the future sessions 
to arrive at more positive conclusions. The reports which the 
Committee of Nomenclature has received from the national wpa 
mittees, and which are printed, are of great importance, and wil 
serve as bases for a more settled classification. It is to be regretted 
also that the great paleontological work of all the known fossils = 
about to be abandoned for the present, by reason of the grea 
expenses which it involves. One of the most inrportant objects of the 
congress has been brought to a conclusion—the unification of colors 
and shadings in maps, and the Committee on the Geological er i 
of Europe announce to us that the publication of this fine map wW! 
not be delayed. ee 
Some six hundred members were registered, of whom one hundr 
and forty-two were from countries other than- Great Britain. The 
Americans present were Messrs. Dall, Fraser, Gilbert, Marsh, 
