370 TRANSACTIONS, NATURAL HISTORY SOCIETY OF GLASGOW. 
* ArRocHAR Hits, 18th July, 1896.—The excursions at the 
Glasgow Fair Holidays to the Arrochar Hills were not attended 
by any members of this Society. 
* ARDENTINNY, Ist August, 1896.—A small company visited 
Ardentinny on the afternoon of this date. Hymenophylium 
tunbridgense, Sm., the rarer of the filmy ferns, was the most 
interesting plant met with. 
* Dairy, 22nd August, 1896.—The excursion on the afternoon 
of this date was carried out conjointly with the Geological Society 
of Glasgow. A large blaes bing, near the station at Dalry, now 
covered with the Viper’s Bugloss (Zchiwm vulgare, Linn.), was 
first visited. Seed of this plant had been sown here some years 
before. Fish coprolites are got in this blaes bing, and a mass of 
calcite mixed with shale was found, in which there were cavities 
filled with ozokerite, or mineral grease, a natural distillation from 
the black blaes or shale. The Garnock Water was followed until 
the mouth of the Caaf Water was reached. At this point there 
is a famous pool, which in the memory of the conductor of the 
party (Mr. John Smith, Monkredding, Kilwinning) was celebrated 
as a salmon pool at a time when the Garnock was a famous 
salmon river. After passing the mouth of the Bombo, the boulder- 
covered part of the Garnock was reached. This is certainly the 
finest part of this stream, in its middle reaches at least. As if to 
heighten the effect at this point, the Kingfisher (Alcedo ispida, 
Linn.) was seen by a number of the party. On the Monkcastle 
Burn a little waterfall was visited, and in the shale at its base 
many fossils may be obtained in a fine state of preservation, The 
limestone on the top of this fossiliferous shale-bed is the same as 
that at the Linn Spout, in this district, and in the rotten cavities 
in the limestone at both localities many sponge spicules and cono- 
donts are to be found. Part of this limestone is also rich in 
trilobites, and many genera of brachiopods are represented in it. 
Above the limestone there is a sandstone which has been 
worked in the upper part of the glen, A trap-dyke there, partly 
amygdaloidal, crosses the glen obliquely, and the variety of joint- 
ing on its exposed weathered side was much admired, 
