296 TRANSACTIONS, NATURAL HISTORY SOCIETY OF GLASGOW. 
to as a species dependent for any future extension entirely upon 
its increase at a single centre (the pine-forests of Rothiemurchus), 
and quite independent of any accessions by migration. Another 
class of illustrations was then brought forward relating to species 
which have greatly increased under our own eyes. From being 
regular birds of passage, these have invaded our northern areas, 
apparently from different centres, ever increasing and pushing 
forward. The Stock-Dove, Tufted Duck, Great Spotted Wood- 
pecker, Hawfinch, Redstart, Starling, Goosander, and Red-breasted 
Merganser were cited as examples. A point deserving further 
attention is, that extension of range of species as breeding species 
in Britain does not depend upon the autumnal lines of migrations, 
but upon the returning lines of spring migrations. Another 
species which of late years has bred numerously in Scotland—the 
W oodcock—was stated to have extended its breeding area recently 
into the bleak, unwooded islands of the Outer Hebrides. This, 
however, was not done apparently until the more sheltered birch- 
clad glens and young fir and larch-plantations of the mainland 
had received and cherished the earlier colonists of the species. In 
conclusion, Mr. Harvie-Brown in his paper appealed to naturalists 
to pay close attention to detail in recording the movements of all 
living things, as important results might be reached even from 
what might appear of little importance at the time. 
22np FrBruary, 1898. 
Mr. Robert Kidston, F.R.S.E., F.G.S., President, in the chair 
Messrs. Andrew Adie Dalglish, 21 Prince’s Street, Pollokshields ; 
James F. Gemmill, M.A., M.B., C.M., 16 Dargarvel Avenue, 
Dumbreck ; James Johnman, 4 M‘Kechnie Street ; James Lockie, 
25 Iona Place, Mount Florida; and R. Hedger Wallace, 7 Great 
Kelvin Terrace, were elected as Ordinary Members. 
Mr. George Horn exhibited a collection of Alpine plants from 
the Andes. Among them were Luzwla Alopecurus, Desv., Azorella 
aretioides, Willd., Cerastiwm imbricatum, H.B. & K., and species of 
Valeriana and Alchemilla from the snow-limit; also Astragalus 
uniflorus, DC., gathered on Chimborazo, at an altitude of 15,000 
feet. Mr, Horn also showed a specimen of Menziesia cerulea, 
Wabhlenb., from the Sow of Atholl. 
