88 



The Naturalist. 



distorted example of the pearl mussel {Unio margaritifera) from the rivef 

 Esk at Crunckley Gill, near Lealholm. 



Meeting Oct. 25th, the president in the chair. — Mr. Percy Alexander 

 showed a number of flowering plants collected at Masham, amongst which 

 were Trollius europceus, Dianthus plumarius, Iris pseud-acorus, Primula 

 farinosa, and an abnormal example of Geum rivale ; Mr. Washington 

 Teasdale, F.R.M.S., several photographs taken at Richmond on the 

 occasion of the recent visit of the Yorkshire Naturalists' Union ; Mr. H. 

 Pollard, Achatina acicula from Derbyshire, Helix pulchella from Glou- 

 cestershire, Bulimus acutus from Somersetshire, and Physa hypnornm 

 from Gloucestershire ; the president, mounted slides of the larvje of the 

 male and female of the vapourer moth {Orgyia antiqna). 



Meeting Nov. 1st, Mr. W. D. Roebuck in the chair. — Mr. J. Fogg 

 exhibited skins of the great albatross {Diomata exulans), the night heron 

 (Nydicorax europceus), the purple heron {Ardea purpurea), the laughing 

 kingfisher {Oacelo gigas), the great black-backed gull {Larus marinus), and 

 of the grey heron {Ardea cinerea) ; Mr. W. D. Roebuck, a specimen of 

 the common bat {Scotujjhilus pipestrellus) from Mytton Church, and 

 described the chief points by which it might be distinguished from all the 

 other bats. Mr. C. Smethurst brought a series of variations of the 

 tortoise-shell butterfly {Vanessa urticoe), and also varieties of the magpie 

 moth {Abraxas ulmata). 



Meeting Nov. 15th, the president in the chair. — Mr. Washington 

 Teasdale read a very pleasing paper on "Compound Vibration Diagrams,'^ 

 which he illustrated by numerous diagrams of his own production. — 

 H. Pollard, Sec. 



Manchester Cryptogamic Society. — Meeting October 17th, Mr. T. 

 Brittain in the chair, who gave a brief account of his recent visit to- 

 Cornwall, where he met Mr. Ralfs, Mr. Curnow, and Mr. Marquand, an 

 eminent trio of cryptogamic botanists living in the vicinity of Penzance, 

 with whom he had the pleasure of several rambles in the vicinity of that 

 town, as well as their pleasant company during the long evenings. Mr. 

 Brittain had collected a large number of microscopic fungi, and numerous- 

 lichens, some of which he kindly distributed at the meeting. Mr, James 

 Cash had also recently returned from a visit to Scotland, and exhibited 

 some of the mosses gathered, of which we may mention Orthothecium 

 rvfescens from Loch Fyne, Ulota Ludwigii from trees near Tnverary, and 

 Dicranum Scottianum from Loch Riden in Argyleshire— all in good 

 fruiting condition. Mr. Pearson showed Riccia crystallina from Sufi'olk, 

 and Jungermannia Pearsoni (Spruce), which latter had been collected in 

 Westmoreland, J une, 1881, being the second recorded station for this 

 new species ; Mr. T. Rogers, a number of mosses and hepaticse, from 

 the collections made by the two cousins, Edward and William Hobson, 

 who were at one time active members of the old Banksian Natural 

 History Society. — Thos. Rogers, Hon. Sec. 



