CONTENTS. 



Report on the SiphonophorjE collected by H.M.S. Challenger during the 



years 1873-1876. 



By Ernst Haeckel, M.D., Ph.D., Hon. F.R.S.E., &c, Professor of Zoology 



in the University of Jena. 



(The Manuscript was received in Instalments between 8th February and 



5th July 1888.) 



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