2 SEAWEEDS 
British Museum, there is the earliest authentic 
evidence of the collecting of seaweeds, the beginning 
‘of the study; and the foundation of its literature 
was laid by later systematic writers, including 
Linneus. It was only to be expected that many 
marine animals, such as Zoophytes, which resemble 
seaweeds frequently in outward form, should have 
been indiscriminately classed with them by these 
writers, and it was not until the present century, 
when our knowledge of minute structure had 
advanced, that a strict division became possible 
between the stony coralline Alge and similarly 
encrusted animals. Gmelin’s Historia Fucorum 
(1768) and Esper’s Addildungen der Tange (1797) 
were the first noteworthy efforts to gather within 
a book devoted to the study of Alge all that was 
then known, and as the result of the stimulus so 
imparted to research, the first years of the present 
century witnessed greater activity and progress in 
the accumulation of knowledge of the forms of sea- 
weeds and their classification. Lamouroux pub- 
lished his Dissertations sur plusieurs especes de Fucus 
in the year “ XIII ”(=1805) of the new era of the 
French Revolution, and a few years later there 
was begun the best of all the early books, Dawson 
Turner’s Fuct (1808-1819), which not only cleared 
up many of the difficulties of preceding writers, but 
presented a large body of new facts acquired from the 
study of specimens brought home by Robert Brown 
and other great botanists and travellers of that time. 
Perhaps the last of those who may be called the 
pioneers of Phycology was Lyngbye, whose Tentamen 
