Frequency distributions of call
numbers for LCSHs
•
•
Even within an LCSH, there is location ‘drift’
•
One primary LC #, but many others too
•
•
LCSH
‘differential equations partial’
•
QA377 (main #)
•
QC20.7
•
QA3
•
TA418
•
TA347
•
QA1
•
QC157
•
QA11.2
•