CONTENTS. 



SESSION 1891-92. 



PAGE 



I. Dragon-flies : Their Life-History.— Mr W. Coats . . 1 



II. On the Growth of Leaves. — Dr Spragde . . .16 



III. Vegetable Fibres used in Brushmaking. — Mr T. Wright . 17 



IV. The Sacred Plant of the Druids.— Dr Watson . . 20 

 V. The Mice Plague.— Mr Tom Speedy . . . .23 



VI. The Earth Pyramids of the Austrian Tyrol {with two Plates). 



—Mr S. Keith ...... 29 



VII. On the Dissociation of a Lichen. — Mr W. C. Crawford, M.A. 33 

 VIII. On some Simple Means of Ascertaining the Focal Length of 



Compound Systems of Lenses. — Mr W. Forgan, F.R.M.S. 36 

 IX. An Error of Instinct. — Mr Sommerville Grieve . . 37 



X. An Observation on Mind in Molluscs. — Mr W. C. Crawford, 



M.A. 39 



Exhibits in Natural History . . . . .42 



Annual Business Meeting . . . . .45 



SESSION 1892-93. 



I. A Day with the Dumfriesshire Otter-Hounds. — Mr J. T. Mack 47 



54 

 55 

 58 

 58 

 62 

 64 

 76 

 79 

 82 

 85 



II. Protection to Birds. — Dr Watson 



III. Fibre Balls. — Dr Sprague .... 



IV. Limelight Lantern Exhibition.— Mr W. Forgan, F.E.M.S. 

 V. Natural History Notes : An Otter Story. — Mr Tom Speedy 



VI. Recent Work by Dr J. M. Macfarlane. — Dr Watson . 

 VII. The Shipworm.— Mr W. Coats 

 VIII. The Kame at Mortonhall.— Mr T. Wright 

 IX. On Microscopical Measurement. — Mr W. Forgan, F.R.M.S. 

 Exhibits in Natural History .... 

 Annual Business Meeting .... 



