Mr. Glassford's History and Description of the Kelp Manufacture. 241 

 VESICULARINA. 

 Family. — Veskulariadce. 

 16. Vesicularia. J. V. Thompson. 

 Vesicularia spinosa. This is never found here, but I have got it from 

 the oyster-beds in Lochryan. 



17. Valkeria. Fleming. 



Valkoria cuscuta. Dodder coralline, named in honour of Dr. Walker, 

 Professor of Natural History, Edinburgh. This pretty little zoophyte, for 

 several years, was got abundantly here, but of late it has been rare. It 

 was got on Halidrys, also on Poly, byssoides, and Rhodomena bifida. It 

 is phosphorescent. 



18. Bowerbankia. Farre. 



1. Bowerbankia imbricata. This is found occasionally here on the 

 small seaweeds. I have seldom seen it of late. 



POLYZOA HIPPOCREPIA. 

 19. Plumatella. Bosc. 

 1. Plumatella repens. This was at one time found in great abundance 

 on the underside of stones, in a quarry pool at Parkend, Saltcoats ; but 

 the pool having been pumped dry on one occasion, . the Plumatellos 

 perished, and I have not seen any in the pool since. I found, what I 

 suppose is a variety of this, on the underside of water-plants, in another 

 quarry pool, and I saw the same alive in the possession of Mr. Brown of 

 Lanfine, who had got it in a pool near Lanfine House. It is much smaller 

 than those found on stones, and I would almost think another species. 



Thtjiaria articulata. Sea-spleenwort. One specimen of this beautiful 

 zoophyte has been found in Arran since the list was made up. 



15th March, 1848.— The President hi the Chair. 



Messrs. C. R. Collins and Thomas L. Patterson were admitted members. 

 The following paper was read : — 



XXX VIII. — History and Description of the Kelp Manufacture. 

 By Charles F. 0. Glassford, Esq. 



History of the Kelp Manufacture. — The history of the kelp manufac- 

 ture, if we could now get at all the details connected with it, would be 

 an extremely interesting one. Recent, however, as we may justly suppose 

 its origin to have been, it would require much labour and research to draw 

 together all the facts conuected with it, so as to show this question in all 



