TRANSACTIONS 



OF THE 



ROYAL SOCIETY OF EDINBURGH. 



VOL. XL. PART II.— FOR THE SESSION 1901-2. 



CONTENTS. 



XII. Ice-Erosion in the Cuillin Hills, Skye. By Alfred Harker, M.A., F.G.S. (With a 

 Map), .......... 



(Issued separately 26th August 1901.) 



XIII. The General Form of the Involutive 1-1 Quadric Transformation in a Plane. 

 Charles Tweedie, M.A., B.Sc, ... . 



(Issued separately 26th October 1901.) 



By 



XIV. Apparatus for Measuring Strain and Applying Stress ; with an Account of some Experi- 

 ments on the Behaviour of Iron and Steel under Stress. By E. G. Coker, D.Sc. 

 (With Eight Plates), ......... 



(Issued separately 12th November 1901.) 



XV. On the Anatomy of a Collection of Slugs from N. W. Borneo ; with a List of Species 

 recorded from that Region. By Walter E. Collinge, Lecturer on Zoology and 

 Comparative Anatomy in the University of Birmingham. (With Three Plates), 

 (Issued separately 16th December 1901.) 



XVI. The True Shape, Relations, and Structure of the Alimentary Viscera of the Porpoise 

 (Phoccena communis), as displayed by the Formal Method. By David Hepburn, 

 M.D., F.R.S.E., and David Waterston, M A., M.D., F.R.S.E. (With Three Plates), 

 (Issued separately 25th February 1902.) 



XVII. On the Primary Structure of certain Palceozoic Stems with the Dadoxylon Type of Wood. 

 By D. H. Scott, M.A., Ph.D., F.R.S. (With Six Plates), .... 

 (Issued separately 7th April 1902.) 



XVIII. On a Posdble Stridulating Organ in the Mosquito. (Anopheles maculipennis, Meig.) By 

 A. E. Shipley, M.A., and Edwin Wilson, F.E.S. (With a Plate), . 

 (Issued separately 21fih April 1902.) 



XIX. The Early Development of Cribrella oculata (Forbes), with Remarks on Echinoderm 

 Development. By Arthur T. Masterman, M.A., D.Sc., F.R.S.E. (With Five Plates), 

 (Issued separately 27th May 1902.) 



XX. A Bathymetrical and Geological Study of the Lakes of Snowdonia and Eastern Car- 

 narvonshire. By T. J. Jehu, M.B., B.Sc. (Edin.), M.A. (Camb.), F.G.S. (With 

 Eight Plates), ......... 



(Issued separately 16th June 1902.) 



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EDINBURGH: 



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