8 INTRODUCTION. 



much to recommend it, both in the plates and descriptions. 

 Great also were the services rendered to Algology by the 

 late Captain Carmichael of Appin, the value of whose MSS. 

 has been amply acknowledged by Sir W. Jackson Hooker, 

 into whose possession they came. There are several others 

 deserving of great praise, that we are constrained to pass 

 over ; but there are two whom it would be altogether un- 

 justifiable to omit in this limited list. The one is a lady 

 who, so far as we know, has pubhshed nothing in her own 

 name, — but who yet may be said to have pubhshed much, 

 as she has so often been consulted by distinguished natu- 

 ralists, who have been proud to acknowledge the benefit they 

 have derived from her scientific eye and sound judgment. 

 We mean Mrs. Griffiths of Torcjuay, of whom we may speak 

 2i^ facile Befjina, the willingly acknowledged Queen of Al- 

 gologists. The other to whom I refer is Professor W. H. 

 Harvey of Dublin, who is well known by his works, and to 

 us best by his excellent ' Manual of British Algse,' which 

 since its publication has been our favourite vade-mecum, till 

 it has in some measure been supplanted by a still greater 

 favourite, his splendid ' Phycologia Britainiica,^ in progress 

 of publication, and which comes to us as a monthly feast, 

 with its accurate descriptions and magnificent illustrations. 



