506 



Presents. 



Dorna (A.) Applicazione dei Principii della Meccanica Analitica a 

 Problemi. V. 4to. Torino 1879. The Author. 



Hirn (G. A.) Explication d'un Paradoxe d' Hydro dynamique. 8vo. 

 Paris 1881. The Author. 



Hopkinson (John) Twenty-nine papers, 1870-80. The Author. 



Massey (Gerald) A Preface to, with Extracts from, a Book of the 

 Beginnings. 8vo. London. The Author. 



Mensbrugghe (M. Van der) Voyages et Metamorphoses d'une 

 Gouttelette d'Eau. 8vo. JBruxelles 1880. Sur l'Application du 

 Second Principe de Thermo dynamique aux Variations d'Energie 

 PotentielJe des Surfaces Liquides. - 8vo. Bruxelles 1880. Du 

 Bole de la Surface Libre de l'Eau dans l'Economie de la Nature. 

 8vo. Paris. The Author. 



Mueller (Baron E. von) Plants of North- Western Australia, folio. 

 Perth 1881. The Author. 



Pettersen (Karl) Lofoten og Vesteraalen. 8vo. Kristiania. 



The Author. 



Plateau (F.) and V. Lienard. Observations sur TAnatomie de 

 l'Elephant d'Afrique (Loxodon Africanus) Adulte. 8vo. Bruxelles 

 1881. The Author. 



Bussell (J. Scott), F.R.S. On the true nature of the Wave of 

 Translation. 4to. London. (2 copies.) On Storm- Stability as 

 distinguished from Smooth- Water Stiffness. 8vo. London. (2 

 copies.) The Author. 



Saporta (G. de), and A. F. Marion. L'E volution du Regne Vegetal. 

 Le3 Cryptogames. 8vo. Paris 1881. The Author. 



Schmidt (Carl) Boden- und Wasser-Untersuchungen aus dem 

 Ferghana- und Ssyr-Darja-Gebiete. 4to. St. Petersburg 1881. 



The Author. 



Scully (Dr. J.) Meteorological and Hypsometrical Observations in 



Western Tibet; with a Discussion by H. F. Blanford. 4to. 



[Calcutta 1876.] H. F. Blanford, F.R.S. 



Stone (E. J.), F.B.S. Cape Catalogue of 12,441 Stars for 1880. 



4to. London 1881. The Admiralty. 



Trois (E. Filippo) Contribuzione alio Studio del Sistema Linfatico 



dei Teleostei. Part III. Nos. 1 and 2. 8vo. Venezia 1881. . 



The Author. 



Wagener (G,) On a new Seismometer, with Summary of Observa- 

 tions, by E. Knipping. folio. E. Knipping. 

 Wolf (Rudolf) Astronomische Mittheilungen. No. 52. 12mo. 



The Author. 



Woolhouse (W. S. B.) On the Adjustment of Mortality Tables. A 

 Sequel. 8vo. London. Measures, Weights, and Moneys of all 

 Nations. Sixth Edition. 12mo. London 1881. The Author. 



