CONUS.
"C. marmoreus is a fine shell. Numerous species are within reach of your purses, and I do not doubt that you will soon acquire a good collection at a moderate price. You, Charles, will find more pleasure in a cone than in a top; and Lucy, who never found much pleasure in toys except in taking them to pieces, has always a ready sixpence either for a poor neighbour in distress, or for some harmless pleasure.
"We have yet two more orders of Mollusca to notice, the Cephalopoda and the Heteropoda.
"At our next lesson I shall mention the genera that are most likely to come under your observation, either fossil or recent."
ARGONAUTA.
NAUTILUS.
"So many families of the fourth order, Cephalopoda, are found only in a fossil state, and which you will not easily meet with, that I shall not consider it needful to give you the whole catalogue," observed Mr. Elliot to his young pupils at the beginning of the next lesson.