Use slashes to mark line divisions in poetry quoted within running text (58a) and to separate alternative terms. Whenever a slash separates lines of poetry, it should be preceded and followed by a space.

Marking line divisions in poetry

In “Digging,” Seamus Heaney observes, “Between my finger and my thumb / The squat pen rests; snug as a gun.”

Separating alternatives

Then there was Daryl, the cabdriver/bartender.

Slashes also separate parts of fractions and Internet addresses.