Contents. 



VI. A Trip to the Island of Hoy.— Mr Tom Speedy . . 276 



VII. A Field Naturalist's Ramble in South Africa.— Mr W. C. 



Crawfokd, F.R.S.E. . . . . . 286 



VIII. Notes on the Formation and Flora of a Shingle Island in the 



River Orchy, Dalmally, Argyll.— Miss Beatrice Sprague 290 

 IX. Report of the Microscopical Section. — Mr W. C. Crawford, 



F.R.S.E. . . . . . . . 315 



Exhibits in Natural History . . . . .318 



Address by the President, Mr James Russell . . ,319 



Annual Business Meeting ..... 334 



SESSION 1906-1907. 



I. Notes on some of the Wild-Flowers in the Vicinity of Penicuik. 



—Mr J. M'Call . . . . . .337 



II. A Few Remarks on Mushroom Phenomena. — Mr J. Paton . 341 



III. Hints on the Study of Hepatics. — Mr S. M. Macvicar . 347 



IV. On the Occurrence of the Rock Samphire {Crithmum inarilimum 



L.) and the Marsh Helleborine Orchis (Epipactis j^ctlustris 

 Crantz) on the West of Scotland. — Mr A. Somerville, 

 B.Sc, F.L.S. . . . . . .352 



V. Observations on some Copepoda that live as Messmates or 



Commensals with Ascidians. — T. Scott, LL.D., F.L.S. 357 

 VI. British Hydrachnidae : The Genus Piona. — Mr Chas. D. Soar, 



F.R.M.S. ....... 372 



VII. Scottish Hydrachnids : Species collected during 1 906. — Mr 



W. Williamson ...... 393 



VIII. The Gramineae under Economic Aspects. — Mr R. Smith . 395 



IX. Observations on a Mygale Spider (Psalmopoeus Cambridgii Poc). 



— Mr J. Adams ...... 402 



X. Observations on the Flight of Flying Fishes. — Mr M. Vaughan 



(Communicated) ...... 406 



XI. Suggestions for Co-operation amongst Local Scientific Societies. 



—Mr W. C. Crawford, F.R.S.E. . . .411 



XII. Cup-Marked Stones. — Colonel J. Sconce . . . 415 



Report of the Microscopical Section. — Mr W. C. Crawford, 



F.R.S.E. ....... 422 



Exhibits in Natural History ..... 423 



Address by the President, Mr James Russell . . . 423 



Annual Business Meeting ..... 432 



Index to Volume . . 



Lists of Members, 1902-1907 



. 435 

 ix-xxxiv 



