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SCANDINAVIA. 
The Royal Swedish Academy of Sciences of Stockholm. 
The Royal Danish Society of Sciences, Copenhagen. 
The Royal Norwegian University, Christiania. 
SWITZERLAND. 
The Physical and Natural History Society of Geneva. 
The Natural History Society of Basel. 
The Natural History Society of Zurich. 
The Society of Natural Sciences, Neuchatel. 
BELGIUM. 
The Academy Royal of Belgium. 
The Royal Society of Sciences, Liége. 
ITALY. 
The Royal Lombardian Institute of Science and Litera- 
ture, Milan. 
The Royal Academy of Sciences, Turin. 
The Italian Society of Natural Sciences, Milan. 
HobuaAnp. 
The Royal Academy of Sciences, Amsterdam. 
The Dutch Society of Sciences, Haarlem. 
SPAIN. 
The Royal Academy of Sciences of Madrid. 
GERMANY. 
The Natural History Society of Halle. 
The German Ornithologists’ Society. 
The Imperial Leopoldino-Carolinian Academy of Na- 
turalists. 
The Senckenbergian Society, Frankfort-on-the-Main. 
The Royal Bavarian Academy of Sciences, Munich. 
The Royal Academy of Sciences of Berlin. 
The Zoological Society of Frankfort-on-the-Main. 
The Imperial Academy of Sciences, Vienna. 
The Imperial Geological Institution of Vienna. 
The Zoological and Botanical Society of Vienna. 
The University and Royal Society of Sciences, Got- 
tingen. 
