61 



and seconded by Dr. Shillitoe, and the party returned to Bourne- 

 mouth after one of the most successful excursions the Section has 

 ever enjoyed. The weather was perfect, and there was no hitch 

 in the arrangements made by the Sectional Secretary. 



Visit to the On July 3rd there was a sectional excursion to 



Electric Light the Electric Light Works at Bourne Valley. 

 Works. The invitation came from the Directors of the 



Bournemouth and Poole Electric Supply Com- 

 pany through Mr. Edgar Ingram, M.Inst.C.E., the Chief 

 Engineer. That gentleman, with the assistance of several of his 

 staff, showed the party, numbering about 30, over the works, and 

 gave brief chats on the various processes employed. We were 

 again favoured with fine weather, and the excursion proved a 

 distinct success. 



& ^election front tlje papers* 

 xmh before tlje ^octetn. 



COLPOMENIA SINUOSA. 



A New British Seaweed. 



By A, D. Cotton, Esq., F.L.S., Royal Gardens, Kew. 



(Read before the Botanical Section, December 7th, 1911.) 



rpHE Seaweed, Colpomenia sinuosa, is one that readily lends 

 itself to study in the field, and concerning which further 

 observations are needed. It was first recorded from the British 

 Isles in 1908, having been noted at Swanage and Torquay the 

 previous season ; but it has been subsequently learned that the 

 plant appeared in the Scilly Isles in 1905. Since 1908 it has 

 spread with great rapidity along the South Coast of England, 

 and often occurs in the greatest profusion. It is now known from 

 many localities in S. Cornwall, S. Devon and Dorset, but has 

 not been recorded further east than Poole Harbour. 



Description and Ecomonic Importance. 



Colpomenia is a member of the Phseophyceae, or " Brown 

 Algae," and consists of a bladder-like frond (thallus) about the 

 size, when full grown, of a greengage or small apple. This 

 normally contains water, but when, as often happens, the fronds 



