46 International Congress of Geologists. — Frazer. 
ness and debate out of the way, and the memoirs destined to 
publication in manuscript in the hands of the Secretaries, the 
official volume has not been out a month or more ago. 
The title of Col. Delgado's book is "Account of the fourth 
session of the International Geological Congress held in Lon- 
don in the month of September, 1888, by Joaquim Filippe da 
Encarnagrio Delgado, Colonel of Engineers, Director of the 
geological works. Lisbon, National Press, 1889." The follow- 
ing is a summary of this book made by one who is not famil- 
iar with Portuguese. 
After relating that the sessions were held in the amphithea- 
ter of the University of London, and the arrangements were 
perfect to satisfy all the wants of such a Congress, he mentions 
that the first session was held the 17th of Sept. and the last on 
the 22d. The week following the sessions was devoted to geo- 
logical excursions so arranged that those interested in any 
particular part of the geological column were provided with 
an opportunity of studying it. The meeting of the British 
Association for the advancement of Science preceded that of 
the Congress, having been held in Bath from the 5th to the 
12th of September where likewise geological excursions were 
organized so that one could observe the upper paleozoic and 
the lower secondary rocks. 
The number of foreigners present at the Congress exceeded 
by many those at its other sessions. At Paris the number of 
members enrolled was 304, of which 194 were Frenchmen, and 
110 foreigners representing 20 different countries. The num- 
ber of members enrolled at London was 835, of which 348 were 
foreigners representing 26 countries in Europe, Asia, America 
and Australia. Of the number 380 actually present at the 
London session there were 140 who represented foreign coun- 
tries or distant colonies of Great Britian. The following table 
gives the statistics on this subject. (See Page 47.) 
The advantage of personal contact of such a large number 
of geologists from all parts of the world is evident, and the 
preceding table is the best argument in favor of the importance 
of an international geological congress, though certain mem- 
bers for reasons not easy to understand predicted before the 
opening of the session that the London session would be the 
last. 
The programme of the ordinary work of the Congress con- 
