THE GEELONG NATURALIST. $5 27 / 
specimens of Ancylus australis, two of Aplexa turrita, several B. 
Gracilentus, and a number of Sphærium Macgillivrayi (?), also two- 
Corbula Angasi, and one specimen of Unio depressus. 
Where the river enters the lake, I observed that the shells. 
found were nearly all Limnea Huonensis, with a few B. Gracilentus. 
‘We then sailed over to Point Campbell. Here the shells were 
principally Bulinus sp., Potamopyrgus nigra, Pisidium Htheridgei f 
one specimen of Ophicardelus Australis. 
The water here is quite brackish, and the swans and coot were: 
in large flocks all over the lake. These brackish-water shells 
appear to be their prineiple food, for I have repeatedly found them 
in the gizzards of birds dissected. s 
At the beginning of the month, our worthy president and my-- 
self visited Shelford, and in the swamp on Mr Russell’s Golf Hill 
Station, we secured a large number of Planorbis sp., and a few 
Bulinus turrita. There appear to be no other shells in this swamp. 
In searching for these shells, we used a small net about the size of 
a dinner plate, fastened to a handle about 18 inches long. I would 
suggest that all the swamps and streams in the district, be system- 
atically tested by the members as opportunities occur. 
NOTES ON LECTURE 
By Mr. G. H. Arncoox, F.L.S., F.R.H.S., 
ON 
“INSECT TRAPS,” 
Delivered before the Geelong Field Naturalists’ Club, Tune 
16th, 1896. 
Mr. G. H. Ancock, E.L.S., F.R.H.S., one of our esteemed Vice- 
Presidents, delivered a most interesting and instructive lecture, 
illustrated by a number of splendid lantern views, on Tuesday 
evening, June 16th. 
As it was a “ Ladies’ Night,” the lecture was, by request, of | 
a popular character. There was a large attendance of members 
and yisitors; the Club’s room being comfortably filled. Mr. W. 
Shaw, Senior Vice-President, occupied the chair. Mr. Adcock, in 
introducing his subject, briefly alluded to the various and 
numerous insect traps to be found in the domain of the Zoologist, 
but it was upon Nature's insect traps in the botanical world that 
he said he wished more specially to speak. While artificial insect 
traps are limited in number, and often of doubtful utility, yet 
Nature has provided them for herself on quite a lavish scale. . 
