viii CONTENTS. 



XXI. On a Rule of Proportion observed in the Setse of certain Naididcs. 

 By J. Stephenson, M.B., D.Sc, Professor of Zoology, Government 

 College, Lahore, ....... 783 



XXII. On the Sexual Phase in certain of the Naididaz. I. The Anatomy of 

 Sexual Individuals of the Genus Dero ; with Remarks on Hwmonais. 

 II. The Genital Organs in the Genus Slavina. By -J. Stephenson, 

 D.Sc., Professor of Zoology, Government College, Lahore. (Plate 

 LXXX), . 789 



XXIII. Geological Observations in South Georgia. By D. Ferguson, Mem. 



Inst. M.E., F.R.G.S. Communicated by Professor J. W. Gregory, 

 D.Sc.,F.R.S. (Plates LI 



XXIV. The Geological Relations c 



J. W. Gregory, D.Sc., F. 



XXV. The Petrology of South C 

 F.G.S., Lecturer in Mi 

 Glasgow. (Plate XCIV), 



XXVI. The Anatomy and Affinity v 



M'Lean Thompson, M.A., B.Sc, Glasgow University. Communicated. 



by Professor Bower. (Plates XCV-XCVI I), . . .837 



XXVII. Morphology and Mathematics. By D'Arcy Wentwokth Thompson, 857 



XXV I II. The Poisoned Arroivs of the Abo rs and Mishmis of North- East India, 

 and the Composition and Action of their Poisons. By Sir Thomas 

 R. Fkaser, M.D., F.R.S., Professor of Materia Medica and Thera- 

 peutics in the University of Edinburgh. (Plates XCVIII-C), . 897 



Index, /£&* m < vu $S>X .931 



