LOS THE GEELONG NATURALIST. 
Sus-Kincpom—IN VERTEBRATA. 
I. Prorozoa—Amoeba, foraminifera, sponges, infusoria, etc. 
II. QCosnLENTERATA— H ydrozoa, actinozoa, sea-anemones, corals, 
sea-pens, jelly fish, etc. 
lII. EonivopERMATA—Echinuses, sea-urchins, star-fish, sea- 
lilies, sea-cucumbers, sea-slugs, etc. 
IV. Annutosa— 
1. Scolecida— Tape worms, hydatids, flukes, gordius, etc. 
2. Anarthropoda—Spoon-worms, earth-worms, sand- 
worms, sea-worms, etc. 
3. Arthropoda—Crustacea (crabs, shrimps, lobsters, 
etc.), arachnida (spiders, scorpions,  etc.), 
myriapoda (centipedes, millepedes), insects, 
V. Motiusca— 
1. Polyzoa—Lace-corals, etc. 
2. Tunicata—Ascidians, etc. 
3. Brachiopoda—Lamp-shells. 
4. Lamellibranchiata—Bivalves, ^ mussels, cockles, 
oysters, scallops, etc. 
5. Gasteropoda—Univalves (snails, whelks, iimpets, etc. ) 
_ 6. Pteropoda " 
7. Oephalopoda—Cuttle-fish, squids, pearly nautilus, 
octopus, etc. 
Sus-Kincpou—VERTEBRATA. 
I. Priscrs—Fish. 
IL. AmpurerA—Frogs, toads, salamanders, etc. 
Til. Repriw1a—Turtles, snakes, lizards, crocodiles, alligators, etc. 
IV. Aves—Birds. 
V. MammariA—Marsnpials, sloths, whales, dolphins, elephants, 
pigs, oxen, sheep, deer, camels, seals, walruses, lions, 
bears, tigers, mice, squirrels, rabbits, bats, monkeys, 
man. 
FOSSIL ROCKS. 
By J. F. MULDER. 
On March Ist Mr. J. F. Mulder read a paper on the above 
subject. After describing the main features of these rocks, and: 
the various theories as to the existence of some deposits, it was 
shown that the component parts of all non-marine fossil strata 
were chiefly silt carried down by rivers, and intermixed with 
animal and vegetable matter, necessarily varying according to 
locality. Hence by the forms of life it can be ascertained to 
