18 
The Royal Academy of Sciences, Amsterdam. 
Verslagen (Natuurkunde), tweede reeks, deel 7. 
(Letterkunde), tweede reels, deel 5. 
Jaarboek, 1872, 
GERMANY. 
The Royal Prussian Academy of Sciences, Berlin. 
Monatsbericht, September to December, 1872. 
— , January to December, 1873, 
Abhandlungen, 1871-72. 
The Society of Friends of Natural History, Berlin. 
Sitzunesbericht, 1872, 
Festschrift, 1873, 
The Senckenbergian Natural-History Society, Frankfort. 
Abhandlungen, Band viii. Heft 3, 4. 
Bericht, 1872-73, 
The Zoological Society of Frankfort. 
Zoologische Garten, October to December, 1872, 
—, January to June, 1873. 
The Royal Bavarian Academy of Sciences, Munich, 
Sitzungsbericht, 1872, Heft 1-3. 
Abhandlungen, Band xi. Abth. 2. 
Inhaltsyerzeichniss, 1860-70, 
The Imperial Academy of Sciences, Vienna. 
Sitzungsbericht, vol. Ixy. heft 1-5. 
—, vol. Ixvyi. heft 1-5. 
——, vol. Ixvii. heft 1-5. 
Denkschriften, bd. xxxii, 
Register, 61 bis 64. 
The Zoological and Botanical Society of Vienna. 
Verhandlungen, Bd. xxii, 1872, 
The Natural-History Society, Halle. 
Abhandlutgen, Bd. xii, Heft 3, 4. 
The Natural-History Union, Hamburg. 
Abhandlungen, Band y. Abth. 8, 
Uehersicht, 1871, 
