Ixxxii PROCEEDINGS—PERTHSHIRE SOCIETY OF NATURAL SCIENCE. 
The following papers were read :— 
1. “The probable Modification of Man by association with 
others.” By R. de Bruce Trotter, M.D., L.R.C.P.E. 
2. “The Geological and Geographical Evolution of Perthshire. 
Paper I.—Introductory.” By P. Macnair. 
3. “Additional Aculeate Hymenoptera for 1889.” By T. M. 
M‘Gregor. (See Trans., Vol. I., p. 152). 
4. “Catalogue of Perthshire Willows in the Museum Herbarium.” 
By F. Buchanan White, M.D., F.L.S., F.E.S. (See Trans., Vol. I., 
P- ! 55 )- 
SUMMER SESSION, 1890. 
The following Excursions were arranged :— 
1. May 22.—To Glen Turret. 
2. June 7.—To Damhead, by Loch Whir and Invermay. 
3. June 21.—To Banks of Tummel, from Pitlochry to Logierait. 
4. July 5.—To Killiecrankie and Pitlochry. 
• 5. July 25.—To Cruach Ardran (3,250 feet), Crianlarich. 
6. Aug. 9.—To North Bank of Tay, from Kenmore to i\berfeldy. 
