6 

 OFFICE-BEARERS. 



18 74-5. 



President, Wm. M. Ogilvie ; Vice-Presidents, David Brown, Alfred 

 Guthrie ; Secretaiy, Wm. Morrison ; Treasurer, John Donaldson ; 

 Councillors, James Brebner, John Hood, W. B. Simson. 



187 5-6. 



President, Alfred Guthrie ; Vice-Presidents, Albert Grothe, John 

 Hood ; Secretary, Wm. Morrison ; Treasurer, John Donaldson ; 

 Councillors, Jas. Durham, Allan Mathewson, John Thomson. 



1 8 7 6-7. 



President, Albert Grothe ; Vice-Presidents, Jas. Durham, John 

 Donaldson ; Secretary, Wm. Morrison ; Treasurer, Allan Mathewson ; 

 Councillors, A. C. Lamb, John Hood, John Thomson. 



Papers and Communications read at meetings during the first 

 three Sessions : — 



First Session— 1874. 



W. M. Ogilvie, President — TJie objects of the Society ; Alfred Guthrie 

 — Entomology; Stephen Cooke — The Action of some Ferments in Plants 

 and Animals; Richard Rattray — Diatomacece; David Brown — T}ie 

 Study of Natural Science ; James Brebner — Alpine Flora. 



Second Session— 1874-5. 



John Hood — The Circulation of Protoplasm in Vegetable Cells; Wm. 

 Morrison — Natural History of the Auchmithie Coast and District ; Alfred 

 Guthrie — Collecting and Mounting Entomological Specimens; Richard 

 'RkTTTiA.Y— Collecting and Mounting Diatoms ; W. M. Ogilvie — Zoophytes; 

 James Brebner — Ascent of Matterhorn ; John Thomson — Methods of pro- 

 moting the Society's usefulness; Frank W. Young — Milk Analysis; Wm. 

 Morrison — Load Scientific Societies; John Hood — Distinction between 

 Plants and Animals ; James Durham — Geology of the Bed of the Firth of 

 Tay ; John Nelson — Birds of tlie Firth of Tay. 



