clx PROCEEDINGS—PERTHSHIRE SOCIETY OF NATURAL SCIENCE. 
20th December, 1897. 
Ex-Bailie James Bridges in the Chair. 
J. G. Goodchild, F.Z.S., F.G.S., Edinburgh, delivered a lecture 
on “ Desert Conditions in Britain,” illustrated by lime-light views. 
The subject of this lecture, which dealt with some important 
problems in structural Geology, has since been published in the 
Transactions of the Geological Society of Glasgow, Vol. XI., Part I., 
1898. 
13th January, 1898. 
Henry Coates, F.R.S.E., President, in the Chair. 
The following donations were intimated 
Museum—Perthshire Collection .—Caterpillars with their food- 
plants, and a collection of Diptera—from Mr. Wm. Wylie. Mute 
Swan (Skeleton)—from Captain Drummond Hay. Index Collection 
—Collection of injurious fungi—from Dr. W. G. Smith. Drawings 
of Diptera—from Miss Mercer. Physiological Slides—from Dr. A. 
Henderson. 
Library —Wild Birds of Essex, by Miller Christy—from Mr. Wm. 
Cole. Transactions of the Natural History Society of Glasgow, Vol. 
V., Part I., 1896-97 — from the Society. Annals of Scottish Natural 
History for 1897, and Scottish Geographical Journal for 1897—from 
Col. Campbell. 
Rev. George Robson, D.D., Garry Lodge, was elected an Ordinary 
Member. 
The following papers were read :— 
1. “A Botanical Ramble on Ben Lettery, Connemara.” By Miss 
Macnab. (See Trans., Vol. II., page 197.) 
2. “ Grasses and other Forage Plants.” By Alfred Brown. (See 
Trans., Vol. II., page 217.) 
3. “Plant Associations of the Tay Basin.” By Robert Smith, B.Sc., 
Dundee. (See Trans., Vol. II., page 200.) 
10th February, 1898. 
Henry Coates, F.R.S.E., President, in the Chair. 
The following donations were intimated :— 
Museum—Perthshire Collection .—Specimens of Psilophyton prin- 
ceps, from Old Red Sandstone Quarry, Earn—from Mr. R. Kidston, 
