t i 
Jesc aha 
tl 4 THE GEELONG NATURALIST. 
a number of angular fragments of a black siliceous limestone were 
seen at this level. These are apparently the ‘basaltic’ fragments 
described in a recent paper read before the Royal Society. 
The specific gravity alone of the fragments, as estimated in the 
hand, is sufficient to show that they are not basaltic, though a, 
superficial examination certainly shows some resemblance. 
Several examples of Succinea Australis, a recent land shell 
were picked up on the surface soil, but fossils are, from the nature 
of the case, so rare as to be practically absent. We have never 
seen any in this formation, and should any members find any they 
should carefully preserve them. In conchology we did not meet 
with as much success as usual at this locality, owing to the tide 
being too high. 
The best point for recent shells is about a mile west of the 
Bluff, and near the furthest point visible from it. We succeeded in 
athering fifty-four species, some being fine specimens, notably 
SAE Jeekbeormtumu. Several species of the Cuttlefish as repre- 
sented by their “ bones” were noted and samples were secured for 
the museum. The only other marine life noted during the short 
time at our disposal were examples of stalked and sessile barnacles, 
and a couple of species of crabs and some other crustaceans. 
Insects were scarce, but a few beetles were found on the 
beach. DANSEN 
Birds are very scarce except between the eighth and twelfth mile- 
posts, and here there are not many to be seen on the road. The 
commonest were the rosella, the white-backed magpie, and the minah. 
A few blue wrens hopped about on the fences, while at one spot the 
white-eyebrowed wood-swallowabounded. Inthethickertimber away 
from the road they appeared to be plentiful, but we had not time 
to stop and see. As we approach the flatter country about two 
miles from the Heads we lose sight of almost all of them; am 
occasional swamp hawk or a nankeen kesterel alone representing the 
division. Of course we always except the sparrows. The Heads 
themselves are entirely devoid of bird life with the exception of a 
few gulls, and we devote, our attention to the shells. H. E. H. 
MOUNTING OBJECTS FOR THE MICROSCOPE. 
[Bx J. Goonprzrr.]. 
Ozsects exhibited under the microscope are either opaque or 
transparent. The former, in the majority of cases, require little or 
no preparation beyond placing them in such a position as to show 
