I/ 



C-. / 

 THE 



BRITISH TUNICATA 



AN UNFINISHED MONOGRAPH 



BY THE LATE 



JOSHUA ALDER 



AND THE LATE 



ALBANY HAXCOCK, F.L.S. 



EDITED BY 



JOHN HOPKINSON, F.L.S. , F.G-.S., ETC. 



Secretary of the Ray Society 



WITH A HISTORY OF THE WORK BY THE 



EEV. A. M. NORMAN, M.A., D.C.L., F.E.S., ETC. 



Honorary Canon of Durham 



VOLUME I 



LONDON 

 PRINTED FOPt THE PtAY SOCIETY 



1905 



