362 TRANSACTIONS, NATURAL HISTORY SOCIETY OF GLASGOW. 
sixty species of fungi were noted, among which the following 
deserve mention :—Agaricus mitis, Pers., A. clypeatus, Linn., 
Polyporus giganteus, Fr., Helvella crispa, Fr., Leotia lubrica, Pers, 
* DumBARTON, 28th March, 1896.—On the afternoon of this 
date, a large company took part in the opening excursion of the 
season. By kind permission of Lord Overtoun, a Life Member of 
the Society, the estate of Overtoun, near Dumbarton, was visited. 
The weather was delightful, and, from the commanding situation 
of the estate, many charmingly varied prospects were obtained. 
The date was rather an early one for field work, and nothing note- 
worthy regarding the natural history of the district falls to be 
recorded, but the excursion was memorable from the opportunity 
which presented itself of visiting, under the leadership of Mr. W. 
A. Donnelly, Bowling, the circular fort on Dunbuie Hill, and 
watching the operation of excavation which was going on. The 
aetual recovery from the refuse mound, during the brief visit 
of the party, of a spear-head shaped implement, a part of a stone 
ornament, and a hammer-like object, excited considerable curiosity. 
The existence of a structure here had been suspected for a long 
time by Mr. Donnelly, owing to the lines of the summit, as seen on 
all sides, either from a distance or near at hand, indicating some- 
thing other than a natural formation; and the attention of the 
Helensburgh Naturalist and Antiquarian Society being directed 
to it, that body, with the permission of the proprietors, carefully 
investigated the structure and the remains found therein. In an 
amply-illustrated article in the “‘ Proceedings of the Society of Anti- 
quaries of Scotland” (Vol. VI., 3rd Series, pp. 291-308), Mr. A. 
Miller, F.S.A.Scot., gives the results of the investigation. Neither 
in its form, dimensions, nor situation, does it differ from the forts or 
brochs in the north of Scotland. There does not appear to have 
been any secondary occupation of this fort. It is remarkable for 
the complete absence of metal implements, and the same has to be 
said of pottery—facts which may indicate great antiquity. The 
stone implements found were all of slate—none of flint. A large 
number of stones with markings of the cup-and-ring order was 
found, some of them showing unique features. The objects dis- 
covered differ widely from those recorded from similar structures 
