STC and Wing call numbers

This article provides an introduction to STC and Wing call numbers at the Folger.

Decimal system for interpolating numbers in STC and in Wing

The following serves as a transcription of the document linked in the heading of this section. It provides an explanation of how the Folger derived call numbers for STC and Wing books before they were enumerated in later editions of those bibliographies.

• .1
• .2
• .3
  • Later editions or issues of 2
    • Begin with .2
      • Use .3 before subdividing .2
      • Reserve (before .15) as long as possible
        • (after .35) without expanding more than 2 places
• .4
• .5
• .6
  • New titles
    • Begin with .5
      • Reserve (before .45) as long as possible
        • (after .65) without expanding more than 2 places
          • Expand according to principles of 2.1-2.9, see below
• .7
• .8
• .9
  • Earlier editions or issues of 3
    • Begin with .8
      • Use .9 before subdividing .8
        • Reserve (before .75) as long as possible
          • (after .95) without expanding more than 2 places

All interpolated numbers are decimals capable of indefinite expansion.

Expansion of new title numbers as follows (examples):

3.5 new title between 3 and 4

• 3.51
• 3.52
• 3.53
  • Later editions or issues of 3.5
• 3.54
• 3.55
• 3.56
  • New titles bewteen 3.5 and 3.6
• 3.57
• 3.58
• 3.59
  • Earlier editions or issues of 3.6

3.55 new title between 3.5 and 3.6

• 3.551
• 3.552
• 3.553
  • Later editions or issues of 3.55
• 3.554
• 3.555
• 3.556
  • New titles between 3.55 and 3.56
• 3.557
• 3.558
• 3.559
  • Earlier editions or issues of 3.56