CONTENTS. 



PAGE 



SiSTEMATic List of Oedbes, Gbneea, and Species . . xvii 

 Chaptee I. — The Position of Sea-weeds in the Ve- 

 getable EiNGDOM ; THEIE StBUCTUKE, ETC. ... 1 



Chapter II. — On the Colotte, Disteibtjtion, etc., of 



Sea-weeds ... 16 



Chaptee III. — On Collecting and Peeseeving Sea- 

 weeds, theie Uses, etc 24 



Olive-coloueed Sea-weeds. — MELANOsPEEMEa; ... 36 



Fucacese 36 



Sporoclmacese . . .46 



Laminariacese ..... .51 



DictyotaoesB ..... .55 



Cliordariaces ... ... . . .66 



Ectocarpaceffi . . . .75 



Eed Sea-weeds. — Ehodospeeme^ 87 



Ehodomelacefle 87 



Laurenciacese ..... . . 118 



CorallinaoeEe ... . . . . . 125 



HapaUdiacese . . .... . . . . 133 



Sphserococcoidese ... 134 



Gelidiacese .... 149 



Spongiocarpese . . 151 



