[DCRM-L] edition, state

[Laurence Creider]

I am cataloging The miscellaneous works of Tobias Smollett, M.D.  London : 
Printed for J. Mundell & Co., Edinburgh, and for J. Mundell, College, 
Glasgow, 1796.  I have 5 of the six volumes.  The copies I have found in 
WorldCat give the format as 8vo with a note: The same setting of type was 
also printed using a 12 imposition.  Our copy is in 12mo, with horizontal 
signatures.

Two different but not un-related issues.

1) Does using the same setting of type with a different imposition count 
as a separate edition?

2) Should I input a separate record into OCLC for the 12mo version? If so, 
how would I qualify it to avoid the dreaded OCLC de-duplication algorithm?

-- 
Laurence S. Creider
Special Collections Librarian
New Mexico State University
Las Cruces, NM  88003
Work: 575-646-7227
Fax: 575-646-7477
lcreider at lib.nmsu.edu