RETORTS ON EXCURSIONS. 



16S 



the Druidical altar theory; and Wilson's Prehistoric Annah of 

 Scotland, page 66, who, while advocating the '• cromlech " 

 theory, erroneously calls " the huge capstone a block of basalt."; 



AiLSA Craig was visited on the Queen's Birthday, 24th May, 

 in conjunction with the Andersonian Naturalists' Society; 

 Cumbernauld Glen, on 2nd June, along with the Airdrie 

 Natural History Society; Pollok, on 5th June; Howietoun 

 Hatchery, Stirling, on 9th June,' in company with the Edin- 

 burgh Field Naturalists' and Microscopical Society; Castlemilk, 

 Rutherglen, on 12th June; Glenfalloch, in conjunction with 

 the Geological Society, on 16th June; Tollcross Park, on 26th 

 June; but nothing of special interest falls to be recorded of 

 these excursions. 



Ben Lomond, 30th June, 1900.— This was a joint-excursion 

 with the Geological Society and the Edinburgh Field Naturalists' 

 and Microscopical Society. The following plants were observed : 



Habenarin conopsea, Benth. ; Myrica gale, L. ; Listera cordata, 



L., at 600 feet; Thalictrum alpinum, L., 1,000-2,900 feet; 

 Eubus chamcemorns, L., 1,900-2,100 feet ; Gnaphalium supinum, 

 L. ; Potentilla sibbaldi, Hall.; Armeria maritima, Willd., 

 2,300-2,900 feet ; Sihne acaulis, L., 2,700 feet, in fine flower ; 

 and on the summit, 3,192 feet, Saxifraga nivalis, L., in flower; 

 Luzula spiceta, L. ; Cochlearia alpina, Wats. ; Saxifraga rhodiola, 

 D.C.; S. hypnoides, L., all from 2,800 feet; S. stellaris, L., from 

 1,900 feet to the summit ; Fhyopteris dryopteris, Fee, in flower at 

 3,900 feet ; P. polypodioides. Fee, very large at 600 feet ; Poly- 

 gonum viviparum, L., at 2,700 feet, in flower; one plant of 

 Juncus triglunus, L. 



Ross Priory, 4th August, 1900.— This excursion was under- 

 taken in conjunction with the Andersonian Naturalists' Society, 

 the conductor being Mr. George Herriot. After visiting the 

 family burial-ground, the party was conducted over the estate 



