LINNEAN SOCIETY OF LONDON, 7 



Dr. Maxwell T. Masters exhibited a remarkably fine specimen 

 o£ Peziza tuherosa on a root of Anemone. It was only compara- 

 tively recently that the hard lumps (Sclerotia) in the soil of 

 Anemone beds had been definitely associated with the fruit of 

 this Peziza ; at one time the Sclerotia were regarded as diseased 

 masses of the root-stock. 



Dr. Masters also exhibited some root-galls on PJum caused by 

 Cynips terminalis. Mr. Cameron, in his ' Monograph of the 

 CynipidcB' published by the Ray Society, had noticed galls 

 formed by this insect on the Beech, Pine, and Vine, but not on 

 the Plum. 



Mr. Digby Nicholl exhibited a singular variety of the Partridge 

 {Ferdix cinerea) which had been shot by Mr. A. "Waugh near 

 Creswell, Northumberland, in September 1893. In colour it 

 resembled the Red Grouse, having the breast and flanks suffused 

 with large patches of dark reddish-brown, and the dorsal plumage 

 very much darker than usual. Mr. Harting pointed out that this 

 variety was described and figured by the late John Hancock in 

 his ' Catalogue of the Birds of Northumberland,' where it had 

 been met with more than 20 years ago, and in which county he 

 himself had procured a specimen at Corbridge-on-Tyue, which 

 was preserved in the collection of varieties formed by the late 

 Mr. F. Bond. 



Mr. Norman Douglas exhibited a black variety of the Water 

 Vole {Arvicola amphibius), captured at Banchory, Kincardineshire, 

 remarking that this variety, which was at one time considered to 

 be restricted to Scotland, had been met with in several English 

 counties (Zoologist, 1892, pp. 281-293), and was well established, 

 in the fen country of Norfolk and Cambridge. 



The following papers were read : — 



1. "Algological Notes from Cumbrae — On the Origin of the 

 Filamentous Thallus of Dumontia Jiliformis" By Greorge 

 Brebner. (Communicated by Greorge E. M. Murray, E.L.S.) 



2. " Entomostraca and the Surface-film of Water." By D. J. 

 Scourfield. (Communicated by Prof. L. C. Miall, E.L.S.) 



March 15th, 1894. 



Prof. Chaeles Stewaet, President, in the Chair. 



The Minutes of the last Meeting were read and confirmed. 



Mr. Isaac H. Burkill and Dr. Jose Camillo Lisboa were 

 elected Fellows, and Mr. Thomas Hick an Associate. 



