FIELD NOTES. 



MOLLUSCA, 



A new Lines, locality for Paludestrina confusa. — 



On Bank Holiday (August 2nd) Mr. V. Howard, M.A., and the 

 writer searched the marsh drains at Theddlethorpe St. Helen 

 for freshwater mollusca. In a drain running at right angles to, 

 and about a furlong distant from, the sandhills near the old 

 brickyard, we found Paludestrina confusa in abundance. 

 This locality, though in the same division (9) as Saltfleetby, 

 where this species was previously found, is about two-and-a- 

 half miles distant southw^ard. — C. S. Carter, Louth, 



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BIRDS. 



Cuckoo reared by a Wagtail. — In a coal-yard adjoining 

 the Horncastle Railway Station, and a few yards from the 

 canal, a porter observed a Cuckoo apparently incubating on 

 the ground. He afterwards examined the spot, and found a 

 Cuckoo's egg laid in the nest of a Wagtail among fragments of 

 coal. He continued to keep the nest under observation, and 

 the young Cuckoo was eventually hatched, and reared by the 

 Wagtail, until it was strong enough to fly away. This was 

 early in July. — J. Conway Walter. Langton Rectory, Horn- 

 castle. 



Occurrence of the Little Gull in Northumberland. — A 



Little Gull, in unusual immature plumage, was seen by 

 Messrs. H. B. Booth, G. A. Booth, and myself, in the harbour 

 at Seahouses on the evening of July i8th. When first seen it 

 was swimming in company with a party of Black-headed Gulls, 

 though keeping itself somewhat aloof from them. It flew round 

 about, and quite close to us several times, then flew on to the 

 rocks at the south of the harbour, and settled there. After a 

 little time it again flew into the harbour, and after circling 

 round once or twice, disappeared in the direction of Bam- 

 borough. The plumage, with the exception of the head being 

 darker, was like the figure in Dresser's ' Birds of Europe.' — 

 R. Fortune. 



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 BOTANY. 



Ricciocarpus natans L. — I collected this plant near Don- 

 caster last June in a pond among Scirpus lacustris. It grew 

 best and almost pure when well shaded ; in some places 

 Lemna trisulca was associated with it, but in the more open 

 parts of the pond the Lemna was much more abundant, the 

 Ricciocarpus being here absent. — W. West. 



1909 Sep. I. 



