1894-95-] Exhibits in Natural History. 149 



British flora on the authority of Don, but was afterwards 

 placed in the doubtful list, and then dropped out altogether. 

 It was not till 1854, when Robert Dick, the Thurso natural- 

 ist, discovered the grass in Caithness, that Don's find was so 

 far corroborated, and the plant readmitted into the British 

 flora. Had Don lived long enough after his discovery, he 

 would have been able to point out the exact spot in Forfar- 

 shire where it grew. The locality where Don found the grass 

 has probably not yet been examined. Under Don's specimen 

 is written, " Habitat in Kella valley, Angusshire," and there 

 is a Kelly den or valley on the river Elliot, in the parish of 

 Arbirlot — the most likely spot in Forfarshire in which to find 

 the plant. 



At this meeting Professor Heddle, late of St Andrews 

 University, gave a most interesting lecture on " Sand " ; and 

 Mrs Carphin read a paper on " The Cricket of the Hearth," 

 with specimens. 



EXHIBITS IN NATURAL HISTORY. 



The chief exhibits at the evening meetings during the Session 

 were the following : — 



By Mrs Spkague. 

 "Jumping Beans" — fruits of a local Mexican tree, Sebastiania pavoniana. 



By Mr A. Hogg. 

 A collection of Golden Eagles', Kites', and Ospreys' Eggs— all Scottish. 



By Mr J. A. Johnston. 

 Pearls from mussels of the river Forth and from other local mussels. 



By Mr W. Eagle Clarke, F.L.S. 



The Yellow-browed Warbler {Phylloscopus superciliosus) ; and a young 

 specimen of the Hawfinch (Coccothraustes vulgaris), bred at Arniston. 



By Mr Forgan. 



A new apochromatic 4-millimetre objective ; and Zeiss's one-tenth apo- 

 chromatic objective, showing Pleurosigma angulation magnified 1800 times. 



