cum\. This will become clear from the following
sentences:

_a._ Mark is feeble _with_ (_for_ or _because of_) want of food
_b._ Diana kills the beasts _with_ (or _by_) her arrows
_c._ Julia is _with_ Sextus
_d._ The men fight _with_ great steadiness

_a._ In sentence _a_, _with want_ (_of food_) gives the cause of
Mark's feebleness. This idea is expressed in Latin by the ablative
without a preposition, and the construction is called the /ablative
of cause\:

Marcus est infirmus inopia cibi

_b._ In sentence _b_, _with_ (or _by_) _her arrows_ tells /by means
of what\ Diana kills the beasts. This idea is expressed in Latin by
the ablative without a preposition, and the construction is called
the /ablative of means\:

Diana sagittis suis feras necat

_c._ In sentence _c_ we are told that Julia is not alone, but /in
company with\ Sextus. This idea is expressed in Latin by the
ablative with the preposition /cum\, and the construction is called
the /ablative of accompaniment\:

Iulia est cum Sexto

_d._ In sentence _d_ we are told how the men fight. The idea is one
of /manner\. This is expressed in Latin by the ablative with /cum\,
unless there is a modifying adjective present, in which case /cum\
may be omitted. This construction is called the /ablative of
manner\:

Viri (cum) constantia magna pugnant

_101._ You are now able to form four important rules for the ablative
denoting _with_:

_102._ RULE. Ablative of Cause. _Cause is denoted by the ablative
without a preposition. This answers the question Because of what?_

_103._ RULE. Ablative of Means. _Means is denoted by the ablative
without a preposition. This answers the question By means of what?
With what?_

N.B. /Cum\ must never be used with the ablative expressing cause or
means.

_104._ RULE. Ablative of Accompaniment. _Accompaniment is denoted by
the ablative with /cum\. This answers the question With whom?_

_105._ RULE. Ablative of Manner. _The ablative with /cum\ is used to
denote the manner of an action. /Cum\ may be omitted, if an adjective is
used with the ablative. This answers the question How? In what manner?_

_106._ What uses of the ablative do you discover in the following
passage, and what question does each answer?

The soldiers marched to the fort with great speed and broke down the
gate with blows of their muskets. The inhabita