t in case, is found in
the following observations.

1. All sentences containing a relative contain two verbs--_John who_ (1)
_trusts me_ (2) _comes here_.

2. Two verbs express two actions--(1) _trust_ (2) _come_.

3. Whilst, however, the actions are two in number, the person or thing
which does or suffers them is single--_John_.

4. _He_ (_she_ or _it_) is single _ex vi termini_. The relative expresses
the _identity_ between the subjects (or objects) of the two actions. Thus
_who_ = _John_, or is another name for John.

5. Things and persons that are one and the same, are of one and the same
gender. The _John_ who _trusts_ is necessarily of the same gender with the
_John_ who _comes_.

6. Things and persons that are one and the same, are of one and the same
number. The number of _Johns_ who _trust_, is the same as the number of
_Johns_ who _come_. Both these elements of concord are immutable.

7. But a third element of concord is not immutable. The person or thing
that is an agent in the one part of the sentence, may be the object of an
action in the other. The _John_ whom I _trust_ may _trust_ me also. Hence

a. I trust John--_John_ the object.
b. John trusts me--_John_ the agent.

s. 456. As the relative is only the antecedent in another form, it may
change its case according to the construction.

1. I trust John--(2) _John_ trusts me.
2. I trust John--(2) _He_ trusts me.
3. I trust John--(2) _Who_ trusts me.
4. John trusts me--(2) I trust _John_.
5. John trusts me--(2) I trust _him_.
6. John trusts me--(2) I trust _whom_.
7. John trusts me--(2) _Whom_ I trust.
8. John--(2) _Whom_ I trust trusts me.

s. 457. _The books I want are here_.--This is a specimen of a true
ellipsis. In all such phrases in _full_, there are _three_ essential
elements.

1. The first proposition; as _the books are here_.

2. The second proposition; as _I want_.

3. The word which connects the two propositions, and without which, they
naturally make separate, independent, unconnected statements.

Now, although true and unequivocal ellipses are scarce, the preceding is
one of the most unequivocal kind--the word which connects the two
propositions being wanting.

s. 458. _When there are two words in a clause, each capable of being an
antecedent, the relative refers to the latter._

1. _Solomon the son of David that slew Goliah_.--This is unexceptionable.

2. _Solomon the son of David who built the temp