CONTENTS 



ANTARCTIC PYRENOCARP LICHENS (published ist April, 1948) 

 By I. Mackenzie Lamb, D.Sc. 



Introduction 



Historical Survey of Lichenological Work in the Antarctic 



Geographical Distribution 



Ecology 



Systematic Account 



List of Literature 



Plates I-IV . 



page 2, 



3 



9 



10 



II 



28 



folUmdng page 30 



WHALE MARKING II. DISTRIBUTION OF BLUE, FIN AND HUMPBACK WHALES 

 MARKED FROM 1932 TO 1938 (published 31st May, 1948) 

 By George W. Rayner 



Distribution of Whales marked 

 Blue Whales 



Fin Whales 

 Humpback Whales 

 Plates V-XXII 



SOUNDINGS TAKEN DURING 



(published 29th September, 1948) 



By H. F. P. Herdman, M.Sc. 



Introduction 



Sounding Equipment 



Correction of Echo Soundings 



Difficulties of obtaining Soundings .... 

 Slope Correction and the condition of the Ocean Floor 

 Terminology of Submarine Relief .... 



The Scotia Arc 



Detailed Analysis of the Sectors of the Scotia Arc . 



Soundings during Hydrographical Surveys 



Soundings off Antarctica in the Meridian of Greenwich 



The Continental Shelf of Antarctica 



Soundings in other Localities 



Appendix I 



Appendix II . 



References 



Notes on the Plates 



Plates XXIH-XXXI 



page 33 

 35 

 • • 36 



37 

 following page 38 



THE DISCOVERY INVESTIGATIONS, 1932-39 



page 41 

 42 

 48 

 50 

 52 

 60 

 61 

 68 

 77 

 85 

 86 

 88 



95 



98 



102 



105 

 following page 106 



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