It has been conjectured that our idea of ---- is founded upon the
conscious ---- of sensations and ideas in our own minds.

* * * * *

TOOL (page 358).

QUESTIONS.

1. What is a _tool_? 2. How does _instrument_ compare in meaning with
_tool_? 3. What special _tools_ are ordinarily called _instruments_? 4.
What is an _implement_? 5. What is a _utensil_? In what special
relations is the word used? 6. What is an _appliance_? How does
_appliance_ compare with _tool_? 7. What is a _mechanism_? 8. What is a
_machine_ in the most general sense? in the technical and common use? 9.
What is an _apparatus_? 10. Which of these words have figurative use?
11. How are _instrument_ and _tool_ contrasted in figurative use?

EXAMPLES.

The time is coming when the ----s of husbandry shall supplant the
weapons of war.

Mix salt and sand, and it shall puzzle the wisest of men, with his
mere natural ----s, to separate all the grains of sand from all the
grains of salt.

The pick, stone-saw, wedge, chisel, and other ----s were already in
use when the pyramids were built.

* * * * *

TOPIC (page 359).

QUESTIONS.

1. From what is _topic_ derived, and with what meaning? 2. How is
_question_ used in a similar sense, and why? 3. Is the general _subject_
or _theme_ properly known as the _topic_? To what is that name more
appropriately given?

EXAMPLES.

My father ... always took care to start some ingenious or useful
---- of discourse, which might tend to improve the minds of his
children.

One of the most important rules in a deliberative assembly is, that
every speaker shall speak to the ----.

The ---- of the Iliad is not the war of Troy, but the wrath of
Achilles exhibited during and in connection with the war of Troy.

* * * * *

TRANSACT, TRANSACTION (page 360).

QUESTIONS.

1. How does _transact_ differ from _do_? 2. How does _transact_ differ
from _treat_ and _negotiate_? 3. How does _negotiate_ compare with
_treat_? 4. How do _transactions_ differ from _proceedings_?

EXAMPLES.

In the first Parliament of James the House of Commons refused for
the first time to ---- business on a Sunday.

The treaty of peace that closed the war of 1812 had been already
---- before the battle of New Orleans was fought.

Any direction of