Xll CONTENTS. 



PAGE 



SquamarisB 152 



HelminthocladiEB 156 



Wrangeliacesa 160 



Rhodymeniaoese . . 163 



Cryptonemiacese 173 



Spyridiaoese 197 



Ceramiaceffl 199 



Geass-geebn Sba OB Feeshwatee Weeds. — Chloeospee- 



ME^ 241 



SiphonacesB 241 



TJlvacesB 247 



Confervaoeffl 258 



OscillatoriacesB 282 



Nostochinese ... 294 



Bulboohsetacese 297 



EXPLANATIOM OE SCIENTIFIC TbKMS 298 



Index 307 



