On Thu, 6 Dec 2018 17:15:39 -0500, Amber Billey <[log in to unmask]> wrote:
>Not including a reference to the now
>obsolete BL1400- for Buddhism goes against the rules outlined in F185. But
>maybe I'm not aware of another rule that would explain this?
Amber, apparently you're either misreading or misspeaking. References are never made *to* obsolete numbers; they are sometimes made *from* parenthesized obsolete numbers to currently valid numbers. But the Background statement in F 185 explains:
"BACKGROUND: Class numbers are sometimes cancelled (i.e., made obsolete). Previously, obsolete class numbers were parenthesized and retained for one edition of the schedule in which they appeared, after which they were removed. Current practice is to retain the parenthesized obsolete numbers indefinitely, as a guide for catalogers."
The BL numbers for Buddhism were cancelled and replaced by subclass BQ in the 1990s, when cancelled numbers were not retained indefinitely, but rather only through the next printed edition of the schedule, after which they were removed.
This is not an official communication of the Library of Congress
William L. Robboy, Librarian
Mexico, Central America & Caribbean Section
Acquisitions & Bibliographic Access Directorate
Library of Congress
[log in to unmask]