( a74 ) 



XXIX. Additional Note to the Remarks on the Nature and Propa- 

 gation of Marine Plants, p. 145. 



By Lieutenant Col. 'Thomas Felley, F. L. S. 

 Read December ^d, 1799. 



COLONEL Velxey wiQies to explain a pafTage that poflibly 

 may be fubjedt to mifconil:ru6lion in his paper, p. 154. It 

 is there obferved that the central fubftance in Fucus ferraius is 

 never converted into mucilage. His meaning is, that it does not 

 diflblve, as in F. ve/iculofus, leaving the pericarps enveloped in a 

 filamentous fubftance. The F. ferratus certainly produces a mu- 

 cilage in its fummit, as well as in every other part of its frond at 

 certain periods ; and from the indifcriminate fituation of this fluid, 

 an argument may arife againft its peculiar reference to the faculty 

 of impregnation, which is confined merely to the fummit of the 

 plant. 



XXX. Jd. 



