INTRODUCTION. 



ix 



tannica,' the systematic arrangement of which 

 I have taken as my guide. 



I have also enumerated the respective locali- 

 ties where the different species of Algae may be 

 found, together with the time of their appear- 

 ance. This information cannot be otherwise 

 than useful to the young algologist, as it will 

 not only save him a great deal of unnecessary 

 trouble, but will enable him, when in search of 

 a particular plant, at once to direct his steps to 

 the precise spot, which he might not otherwise 

 be enabled to discover. 



It is not intended, neither is it possible, 

 within the confined limits of a work like this, 

 to enter into a description of the character and 

 peculiar structure of the marine Algae. It con- 

 tains, as its title expresses, with the exception 

 of a few general remarks, and the list of marine 

 Algae previously adverted to, familiar instruc- 

 tions for collecting, laying down, and preserving 

 sea-weeds. 



The author flatters himself that the plain 

 information here given, will be found amply 

 sufficient for this purpose ; and whilst the 

 young algologist continues to prosecute his 



