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[Feb. 20, 



Albert l er , Prince de Monaco. Resultats des Campagnes 

 Scientifiques accomplies sur son Tacht. Fasc. 1. 4to. Monaco 

 1389. H.S.H. Prince Albert of Monaco. 



Beneden (P. J. van.), For. Mem. R.S. Histoire Naturelle des Cetaces 

 des Mers d'Europe. 8vo. Bruxelles 1889. The Author. 



Buckton (G. B.), F.R.S. Monograph of British Cicadae, or Tettigiidse. 

 Part 1. 8vo. London 1890. The Author. 



Deherain (P. P.) Travaux de la Station Agronomique de l'Ecole 

 d' Agriculture de Grignon. 8vo. Paris 1889. The Author. 



Fraunhofer (Joseph von) Gesammelte Schriften. Herausg. von E. 

 Lommel. 4to. Munchen 1888. 



The Bavarian Academy of Sciences. 



Jordan (D. S.), and B. W. Evermann. Description of the Yellow- 

 finned Trout of Twin Lakes, Colorado. [Sheet. Washington'] 

 1890. U.S. National Museum, Washington. 



Lejeune-Dirichlet (G.) Werke. Herausgegeben auf Veranlassung 

 der Koniglich Preussischen Akademie der Wissenschaften von 

 L. Kronecker. Bd. I. 4to. Berlin 1889. The Academy. 



Watt (Gr.) A Dictionary of the Economic Products of India. 

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The Government of India. 



