[ xiii ] 
XY. On the Homologies and Succession of the Teeth in the Dasyuridce, with an 
Attempt to trace the History of the Evolution of Mammalian Teeth in general. 
By Oldfield Thomas, British Museum (Natural History). Communicated 
by Dr. Gunther, F.R.S . page 443 
XVT. The Embryology of Monotremata and Marsupialia .—Part I. By W. H. Cald¬ 
well, M.A., Balfour Student in the University, and Fellow of Gonville and Caius 
College, Cambridge. Communicated by Professor M. Foster, Sec. R.S. . 463 
XVII. The Electromotive Properties of the Electrical Organ of Torpedo Marmorata. 
By Francis Gotch, M.A. Oxon., B.A., B.Sc. London. Communicated by 
Professor Burdon Sanderson, M.D., F.R.S. . 487 
XVIII. On the Tubercular Swellings on the Roots of Yicia Faba. By H. Marshall 
Ward, M.A., F.L.S., Fellow of Christ’s College, Cambridge, and, Professor of 
Botany in the Forestry School, Royal Indian College, Cooper’s Hill. Com¬ 
municated by Professor M. Foster, Sec. R.S . 539 
Index 
563 
