Total, 211, not including the teeth.[1]

We teach the children to say "about two hundred," because there is not
always the same number of bones in the body. In some parts two or three
bones unite and form one bone. For example: the breastbone of a child is
made up of eight pieces; some of these unite as it becomes older, so that
when fully grown it has but three pieces in this bone.

[1] The teeth are not bone, but a kind of soft, bone-like substance, called
_dentine_. Common ivory is dentine.

* * * * *

PART IV.

FORMULAS FOR THE LESSONS ON THE ORGANS OF SENSE.

1. _The Eyes._--My eyes are to see with.

My eye is like a ball in a deep, bony socket. The black circle in the
centre is the pupil or window of my eye; the colored ring is the iris or
curtain; the white part is the eyeball.

My upper and lower eyelids cover and protect my eyes.

My eyebrows are for beauty, and keep the perspiration from rolling into my
eyes.

My eyes are washed by teardrops every time I wink my eyelids.