24 Presents. [May 1, 



Bigelow (F. H.) The Solar Corona, discussed by Spherical Har- 

 monics. 4to. Washington 1889. 



The Smithsonian Institution. 



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

 Tettigidee. Part 2. 8vo. . London 1889. The Author. 



Distant (W. L.) A Monograph of Oriental Cicadidae. Part 2. 4to. 

 London 1889. The Trustees, Indian Museum, Calcutta. 



Hooker (Sir J. D.), F.R.S. The Flora of British India. Part 16. 

 8vo. London 1890. The India Office. 



Mensbrugghe (Gr. van der) Sur la Condensation de la Vapeur 

 d'Eau dans les Espaces Capillaires. 8vo. Bruxelles 1890. 



The Author. 



Pyne (J. K.) Catalogue of Musical Instruments, principally illus- 

 trative of the History of the Pianoforte, the property of Henry 

 Boddington. Obi. 4to. Manchester 1888. Mr. Pyne. 



R/osenberger (F.) Die Geschichte der Physik. 8vo. Braunschweig 

 1882-90. The Author. 



Todd (D. P.) Photographs of the Corona taken during the. Total 

 Eclipse of the Sun, January 1, 1889. 4to. Washington 1889. 



The Smithsonian Institution. 



Walker (Rev. F. A.) The Botany and Entomology of Iceland. 8vo. 

 [London 1890.] The Victoria Institute. 



