International Congress of Geologists. — Frazer. 53 
H. Williams and others continued this interesting discussion 
which, however, according to the rules which the Congress 
adopted for its government was followed by no vote. 
On the 20th the discussion was directed to the limitations 
of the Tertiary and Quaternary terranes. 
Prof Renevier and Dr. Blanford think that the Quaternary 
should not be considered a group of equal value with Tertiary 
but should be regarded as a sub-division of the Tertiary. 
Prof, de Lapparent, Dr. Frederick Sacco of Tunis, Prof. Go8- 
selet, Prof. Pilar, and Mr. Evans think it important enough to 
rate independently. Prof. Prestwich while thinking the epoch 
of importance, as containing man, would call it Plistocene. 
During the session of the 21st of Sept. Dr. Hauchecorne pre- 
sented the first sheets of the geological map of Europe, repre- 
senting a part of central Europe, comprising a part of Denmark 
and Sweden, the greater part of Germany, Holland, Belgium 
and a part of France, including the Ardennes. The map was 
constructed on a scale of ^3o„o„„ and has for principal merid- 
ian that of Paris, but also on one of the margins has the longi- 
tudes referred to London. 
On Saturday the 22d was the concluding session. The com- 
mittee on the method of voting consisted of Capellini Presi- 
dent, de Lapparent Secretary, Blanford, Inostranzeff,Neumayr, 
T. Sterry Hunt and Zittel. This committee recommended 
that the vote on any question should be divided into two parts : 
1st, that of the members from other countries than that in 
which the Congress was held, and 2d that of the members who 
are natives of the country where the Congress happens to be 
held. If these two votes are accordant the result may be ac- 
cepted as final. If they disagree it will be considered that the 
question has not been sufficiently studied, and the resolution 
will be submitted to another Congress. 
At the session of the 10th, Prof. Frazer presented a long list 
of scientific societies and institutions of higher instruction in- 
viting the Congress to hold its next session in the United 
States, and others inviting the Congress to select respectively 
Philadelphia and Xew York as the place of meeting. Two 
days later an invitation was received by cable from major 
Powell for the Congress to meet in Washington. The Coun- 
cil received with the greatest enthusiasm these invitations, 
which was shared by Profs. Stur and Neumayr in the name of 
