All 5 Uses of

dispose
in
Native Son

I do not say that if we understand this man's life we shall solve all our problems, or that when we have all the facts at our disposal we shall automatically know how to act.
Book 3 *

disposal = command

I could not have placed at the disposal of a jury the evidence, so general and yet so confoundingly specific, so impalpable and yet so disastrous in its terrible consequences--consequences which have affected my client and account for his being here today before the bar of judgment with his life at stake--I could not have done that and have been honest with myself or with this boy.
Book 3

As long as he could take his life into his own hands and dispose of it as he pleased, as long as he could decide just when and where he would run to, he need not be afraid.†
Book 2 *

A wealthy, kindly disposed white man, a resident of Chicago for more than forty years, sends to the relief agency for a Negro boy to act as chauffeur to his family.†
Book 3 *

Definitions:

(1) (dispose as in: dispose of the waste)
to throw away
(2) (dispose as in: dispose of the matter)
to settle something so it no longer requires attention
(3) (dispose as in: dispose of the assets)
sell or transfer to another
(4) (dispose as in: disposed the troops along...)
the arrangement, positioning, or use of things
This sense of dispose can be used in the form disposal to indicate that a person can use something as they wish -- as in:
- I am at your disposal.
- She has many assets at her disposal.
(5) (dispose as in: Is she disposed to help?)
inclined (with a tendency to; or in the mood to)

This is usually seen in the form "disposed to..." or "disposed toward..."
(6) (meaning too rare to warrant focus)
meaning too rare to warrant focus:

Less commonly, disposing of can imply killing someone.