LCC Practicum 1
This section contains examples of call numbers. Please look carefully at these examples; some of them may require closer inspection than others.
The following example contains three call numbers that are are very similar except for one difference.
QC 981.8 G578

QC 981.8 G578 
QC 981.8 .G56 2006 
You’ll notice that the only difference in these call numbers is the date. Remember that “nothing comes before something.” That is why QC 981.8 .G56 G578 comes before QC 981.8 .G56 G578 2002, etc.
Is the next example in the correct order?
N 6537 
N 6537 
N 6537 
N 6537 
The example is in the correct order. If you thought that it might not be, chances are that is because of the Cutter numbers. The Cutter numbers are easy to confuse as being whole numbers. It is also easy to get "tunnel vision" when reading call numbers and neglect the alpha portion of the Cutter numbers. Here is the example again with the potentially confusing Cutter numbers in bold.
N 6537 
N 6537 
N 6537 
N 6537 
Remember that Cutter numbers are always read as decimals. Which call number below is out of place?
M 1010 .M95 B6 1987 
M 1010 .M95 B59 1987

M 1010 .M952 B595 1987 
M 1010 .M98 B65

Did you find the book that is out of place? Look carefully at the bold Cutter numbers below.
M 1010 .M95 B6 1987 
M 1010 .M95 B59 1987 
M 1010 .M952 B595 1987 
M 1010 .M98 B65

Because we read Cutter numbers as decimals, these books need to be switched to look like the following:
M 1010 .M95 B59 1987 
M 1010 .M952 B595 1987 
M 1010 .M95 B6 1987

M 1010 .M98 B65

Cutter numbers can be very tricky....
It is very important to take your time when shelving and to look carefully at every aspect of a call number.