1888.] 



Presents. 



145 



the quadrate acts almost entirely as a tympanic frame. Incus and 

 malleus fuse sometimes with each other, and lean on to the parotic 

 region. The masticatory joint is doubly concave-convex (Monotremata) . 



VII. The quadrate is converted into the principal part of the tym- 

 panic frame, viz., annulus tympanicus. The mandible has lost its 

 articulation with the quadrate, and the masticatory joint is a single 

 concave-convex one, the convexity belonging to the mandible (Mono- 

 delphia). 



Presents, April 26, 1888. 



Transactions. 



Bern : — Naturforscheude Gesellschaft. Mittheilungen. 1887. 8vo. 



Bern 1888. The Society. 



Kew : — Royal Gardens. Bulletin. 1888. No. 16. 8ro. London. 



The Director. 



London : — Royal Institute of British Architects. Journal of Pro- 

 ceedings. Vol. IV. No. 12. 4to. London 1888. 



The Institute. 



Royal Meteorological Society. Quarterly Journal. Vol. XIV. 



No. 65. 8vo. London 1888 ; The Meteorological Record. Vol. 



VII. No. 27. 8vo. London [1888] ; List of Fellows. 1888. 



8vo. The Society. 



Royal Microscopical Society. Journal. 1888. Part 2. 8vo. 



London. The Society. 



Royal Statistical Society. Journal. Vol. LI. Part 1. 8vo. 



London 1888. The Society. 



University of London. Calendar. 1888-9. 870. London. 



The University. 



Zoological Society. Proceedings. 1887. Part 4. 8vo. London 

 1888 ; Transactions. Vol. XII. Part 7. 4to London 1888. 



The Society. 



Madrid: — Real Academia de Ciencias. Memorias. Tomo XII. 



8vo. Madrid 1887 ; Revista de los Progresos de las Ciencias. 



Tomo XXII. No. 4. 8vo. Madrid 1887; Anuario. 1888. 



12mo. Madrid 1888. The Academy. 



Paris :— Societe Philomathique. Bulletin. Tome XII. No. 1. 



8vo. Paris 1888. The Society. 



Rome : — R. Comitato Geologico d'ltalia. Bollettino. No. 1-2. 



8vo. Punna 1888. The Comitato. 



Switzerland : — Schweizerische Naturforschende Gesellschaft. Ver- 



handlungen. Jahresbericht 1886-87. 870. Frauenfeld 1887 ; 



Compte Rendu des Travaux de la Societe Heivetique des 



Sciences Naturelles reunie a Frauenfeld, 1887. 8vo. Geneve. 



The Society. 



