484 The American Naturalist. [May, 
on the number of persons who have inscribed themselves is so great— 
nearly 700—that it will be absolutely impossible to enable them all to 
take part in the excursions. 
As to the delegates of the different scientific institutions, the Com- 
mittee of Organization, desiring to follow the precedent established by 
former Congresses, hopes that each of those institutions which desires to 
have itself represented by a delegate will not fail to announce his name 
in advance. 
Accept the assurance of my most distinguished consideration. 
SCHERNYSCHEW. 
Dr. PERSIFOR FRAZER, 
Room 1042 Drexel Building, 
Philadelphia, U. S. A. 
Learned societies and other similar bodies which desire to profit by 
this permission, should address Mr. A. O. Michalski, Comité Géolgique, 
St. Petersburg, Wassili Ostrow. 4™° ligne, enclosing a draft for twenty- 
two franes and specifically stating the name of the Society which 
wishes to be inscribed a member of the Congress, and also that in 
addition to the twelve francs which are sent as membership dues, ten 
francs are added for the livret guide (which will contain very valuable 
information).—P. F. 
