W INTRODUCTION 



fof 



AL^OLOGT 



WITH A 



CATALOGUE 



OF 



AMERICAN ALG^l, OR SEA-WEEDS, 



ACCORDING TO 



THE LATEST CLASSIFICATION 



OF 



PROF, HARVEY, 



BY JOHN HOOPER 



BROOKLYN: 

 PUBLISHED BY JOHN HOOPEE 



October 1, 1850* 



