EDITORIAL NOTES. ix 



dealing with the Vermes ; fifteen Reports (in 18 Parts) dealing with the 

 Ccelenterata ; and three Reports (in 3 Parts) dealing with the Protozoa. 

 Of Botanical Reports there are three Reports dealing with the Botany of 

 Oceanic Islands, and one Report on the Marine Diatomace^e. 



These Biological Reports have been issued, whenever ready, and without 

 any reference to systematic arrangement of the subjects treated of, in eighty- 

 seven separate parts, and as thirty-four volumes of Reports, the whole, 

 together with the illustrations, being bound up in forty-two large quarto 

 volumes. These volumes contain 24,700 pages of letterpress, 2600 quarto 

 lithographic and chromo-lithographic plates, with many maps and numerous 

 woodcuts. 



The Biological Reports have been contributed by sixty-two separate 

 authors, forty-two of whom are resident in the United Kingdom, India, 

 and the British Colonies, seven in Germany, three in the United 

 States, two in Holland, and one in each of the following countries, viz., 

 France, Russia, Sweden, Norway, Denmark, Switzerland, Belgium, and 

 Italy, so that nearly all civilised countries have taken part in the pro- 

 duction of this great work. The cosmopolitan or international nature of 

 the undertaking becomes still more evident, if account be taken of the 

 large number of naturalists and others, in different parts of the world, who 

 have in various ways assisted the several authors and the editor while 

 carrying on their investigations. 



For my own part, I desire now to record my indebtedness, and to convey 

 my thanks to all the contributors, and to all those who have, by the loan of 

 specimens, books, and manuscript, by information and advice, or in any other 

 way, assisted me in carrying to a successful issue the biological work con- 

 nected with these reports on the Scientific Results of the Expedition. 



All the type specimens referred to in the Zoological Reports have been, 

 or will be, within the next few months, placed in the British Museum. It 

 is somewhat remarkable that although the various Challenger Collections 



