NATURAL HISTORY SOCIETY OF GLASGOW. 3 



slightest motion of the twigs to which they are attached they 



suddenly withdraw themselves into -their tubes, but begin to creep 



out again after a few moments rest. 



$ 



II. — Observations on a mode of identifyinrj certain Post-tertiary fossils. 

 By Mr David Robertson, F.G.S. 



The subject was fully illustrated by a carefully-prepared series 

 of mounted specimens of the various parts of Echinoderms, and 

 also of bones of fish, chiefly otolites. 



Professor Young then delivered a brief opening address, in the 

 course of which he drew a comparison between geology at the 

 beginning of the century, and biology at the present day. 



October 26th, 1869. 

 Professor John Young, M.D., F.G.S., President, in the chair. 



specimens exhibited. 



Mr James Ramsay exhibited a number of rare British plants, 

 gathered by himself in the month of August last, at Muirhouses 

 and Kelvinside, both localities in the immediate vicinity of 

 Glasgow. The collection included specimens of the following : — 



FROM MUIRHOUSES. 



Centaurea CakitrajM, . . . Star Thistle, 



Cichorium Intyhus, 



Hordeum murinum, 



Sisymhrium Irio, . . 



Malva rotundifolia, 



Erysimum cheirantJioides 



Senehiera Coroncpus, . 



Melilotus parviflora, 



Trifolium resupin atum, 



Trifolium ochroleucum, 



Anthemis Cotula, . . 



Chicory. 

 Wall Barley. 

 London Rocket. 

 Round-leaved Mallow. 

 Treacle Mustard. 

 Swine's Cress. 

 Small-flowered Melilot. 

 Reversed Trefoil. 

 Suljjhur Trefoil. 



. Stinking Chamomile. 



FROM KELVINSIDE. 



Melilotus parviflora, . . . Small-flowered Melilot. 



Medicago falcoM, .... Sickle Medick. 



Anthemis arvensis, .... Corn Chamomile. 



Beta maritima, Sea Beet. 



