EDITORIAL NOTE. 



THE present volume constitutes the fifth series of papers on the Zoological Results of 

 the Scottish National Antarctic Expedition, and is the third volume dealing with the 

 Invertebrate life of Antarctic and adjacent seas. It contains thirteen papers ranging 

 through most of the great groups of invertebrate animals, from Protozoa to Crustacea 

 and Mollusca, and to its formation have gone the researches of distinguished scientists, 

 not only in Scotland and England, but in France and Sweden as well. To these con- 

 tributors the thanks of the Editor and of the scientific world are due, the more so since 

 the world at large has not yet recognised that the labourer in scientific fields is worthy 

 of his hire, and since these contributions one and all are the fruit of labours of love. 



The collections dealt with in the present papers have not only furnished many 

 species new to science, but have afforded material from which considerable additions 

 have been made to our knowledge of the structure and distribution of previously 

 recorded forms, and upon which useful revisions of related forms have been based. 



It is with regret that I have to record the death in action at Neuve-Cbapelle, 011 

 21st March 1915, of one of the contributors to this volume, Lieut. L. N. G. Ramsay, 

 whose papers on Polychrets in the present and on ornithology in a previous volume 

 gave promise of a bright career as a zoologist. To the war also must be attributed the 

 delay in the issue of this volume of the Scientific Results of the Scotia, for the 

 difficulties in the way of publication have been great, and have even now been circum- 

 vented only through the generosity of Sir Thomas Glen-Coats. To him, as to the 

 Carnegie Trust for the Universities of Scotland, which assisted by contributing to the 

 cost of the production of Plates and of Title-pages, the Editor offers his sincere thanks. 

 Similar recognition is due also to the Councils of the Royal Society of Edinburgh and 

 the Royal Physical Society for permission to make use of contributions to their 

 publications, for with a single exception the papers in this volume have appeared 

 in their Transactions and Proceedings ; to the former in particular his gratitude is 

 due, in that it bore the charges of the primary printing of the majority of the papers. 

 To obviate all possibility of confusion in cases of reference, the original pagination 

 of these papers is given at the foot of every page, and the date of first publication 

 is stated in every case. Through an oversight in paging, pages 233 to 236, between 

 two independent Parts of this volume, are non-existent. My cordial thanks are due 

 to Dr R. N. Rudmose Brown and Dr J. Ritchie for their valuable assistance in the 

 final arrangement of the volume. 



WILLIAM S. ISRUCU, 



Editor. 



