Conchology. 3 
and have perhaps heard a surly, snappish, peevish 
person called a crusty fellow; they will now 
understand what is meant by a crustacean and 
crustaceology, that part of Zoology which treats of 
crustaceous animals. They constitute quite a large 
family, these ologies, and have a strange way of 
twisting themselves about, and exchanging limbs 
and features, so that one is puzzled at times to tell 
which is which. But here we have fixed two of 
them, called 'T’zsvaczoLoay and CrustTacEoLoey, twin 
brothers, and very much alike in their character- 
istics. Let us have a good look at them, so that 
we may know them again if we should lose sight of 
them for awhile. Now we will spell over the name 
of the first— 
CONCHOLOGY. 
Why, it is changed already! Has this science of 
shells then another name? Yes, and this is it, 
pronounced kong-koi-o-gy, and derived from the ~ 
Latin concha, which means properly a shell - fish 
with two shells, joied by a hinge, as the oyster, 
the cockle, etc. This present volume then is a 
work on Conchology, the subject of it is Conchiferous, 
and whoever studies it will be doing something 
towards becoming a Conchologist. 
