Regarding "has also" vs. "also has":  I USED to think that there was a real
difference here, albeit one so subtle that most people wouldn't notice it.
(Maybe I still think so; that's the problem with the subtlety...)  The
construction "Each vol. has also a distinctive title" does, however, seem to
emphasize the fact that each volume bears, in addition to the series title, a
distinctive title.  Either construction, however, would be preferable to
"Each vol. has a distinctive title"; that one might make someone look twice
and wonder, "But does each one have the series title?"

Maybe this is just one of those cataloger brain-twisters we seem to thrive on.
Have any PS librarians out there noticed any confusion on the part of catalog
users?

Kevin M. Randall
Head, Serials Cataloging Section
Northwestern University Library