Exchanges. xli 



Russia — Continued. 



Sankt-Peterbnrg [St. Petersburg]. 

 Imp. Akademia Nauk. 



(Academy of Sciences. ) 

 Imp. Biblioteka. 

 Imp. Russkoie Geograficheskoie Obshchestvo. 



(Geographical Society.) 

 Imp. Sankt-Peterburgskii Botanicheskii Sad. 



(Botanical Garden.) 

 Imp. Sankt-Peterburgskoie Mineralogicheskoie Obsh- 

 chestvo. 



(Mineralogical Society.) 

 Institut Imperial de Medicine Experimentale. 

 Tiflis. 



Magnitnaia i Meteorologicheskaia Observatoria. 

 (Magnetic and Meteorological Observatory.) 

 Spain. 



Barcelona. 



Real Academia de Ciencias y Artes. 

 Cordoba. 



Academia Nacional de Ciencias Exactas. 

 Madrid. 



Observatorio de Madrid. 



R. Academia de Ciencias Exactas, Fisicas y Natura- 



les. 

 Sociedad Espanola de Historia Natural. 

 Sweden. 

 Lund. 



K. Universitet. 

 Stockholm. 



Biologiska Forening. 

 " Entomologiska Tidsskrift." 

 K. Svenska Vetenskaps Akademie. 

 National Historical Museum. 

 Upsala. 



K. Vetenskaps Societet. 



Universitets Mineralogisk-Geologisk Institutionen. 

 Switzerland. 

 Aarau. 



Aargauische Naturforschende Gesellschaft. 

 Mittelschweizerische Geographisch-Commcrcielle Ge- 

 sellschaft. 



