Manchester Memoirs, Vol. liii. (1909), No. \\. 3 



impossible in a place like this, or indeed in any part of 

 this bay, for fish to get any ground food. 



A little to the north of Ramp Holme Island about 50 

 feet from the shore in 13 to 15 feet of water, streaming 

 plants of the Pondvveed Potavwgeton praelongus (Wulf) 

 were seen coming up to the surface of the water while the 

 ubiquitous Nitella here too covered the bottom of the lake. 

 At this point the Canadian pondweed was not met with ; 

 the slightly deeper water or the less sheltered position of 

 this region may have been unfavourable to its growth. 

 The Pondweed {Potamogeton praelongus) occurs up and 

 down the lake at intervals between the Ramp Holme 

 Island and Storrs Hall and affords I am told a good 

 harbour for pike and perch. 



A visit to a bay at Cunsey, close to the Fish Hatchery, 

 was of considerable interest. Here the water is shallower, 

 and no Nitella was seen, but the bottom of the lake was 

 covered with the Canadian pondweed {Elodea), or Polly, 

 as it is locally called. Some two jears ago, about Christ- 

 mas time, the bay was cleaned, and I was told the present 

 growth of Eloden is only about one quarter as dense as it 

 was before the dragging. There was a little Potamogeton 

 present, but it was not so luxuriant as in the more open 

 reaches of the lake. 



The last bay visited was the little rocky bay of Gill 

 Head, on the East side of the lake, nearly opposite 

 Cunsey House. Here the bottom was more stony, and 

 the vegetation of quite a different type. The bank 

 shelved down very gradually, and there was a large area 

 of the bay, between 2 and 5 feet in depth, in which were 

 growing between the coarse pebbles and stones numerous 

 but isolated plants of the Water-Milfoil {^Myriophylluni 

 spicaiuni), theQuillvvort {Isoetes lacustris L.), and the Shore- 

 weed {Littorella lacustris L.). These plants were never 



