I don't know what tools you have available but what you need to create
Cutter numbers (which are added to the LC class numbers) is the LC author
table.  It is a one-page sheet that can be found in various places,
such as LC's Subject Cataloging Manual: Shelflisting (which is available
in Cataloger's Desktop and, I believe, Classification Web).  The LC
author table has also been reproduced in most cataloging textbooks so
I would suggest you look first in the textbook you used in your cataloging
class, assuming you still have it.

As for the Cutter number you mentionned, .R67 sounds appropriate for the
name Rosch.  According to the table, consonants (other than S) that are
followed by the letter 'O' take the numeral '6' so 'R6' for names
beginning 'Ro'.  The number is then expanded based on the third letter
and the other materials you have in your shelflist in class  TK7888.3
by authors whose surnames begin with the letters 'Ro'.  The intent is
to keep the materials in that class (or any class) in alphabetical order
by main entry.

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Judith Hopkins                          [log in to unmask]
Norcross, GA  30092-1872                [log in to unmask]

      Web page: http://www.acsu.buffalo.edu/~ulcjh/
        Listowner of [log in to unmask]
    (http://ublib.buffalo.edu/libraries/units/cts/autocat)
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On Thu, 21 Jul 2005, John Roy wrote:

> My name is John Roy, and I am a Librarian for Savannah River College in
> Augusta, GA (a Business College). I'm new here, and in the process of
> placing Spine Labels on all of the books, as well as editing/inputting
> information into the general catalog (I am not naturally a Technical
> Services Librarian). I took a class while in college from Heidi Hoerman, but
> it has been a while. I feel comfortable cataloging in Dewey, however, LC is
> giving me problems when the book is not cataloged on their website. Let me
> provide an example of what I would need help with:
>
>
>
> TK7888.3
>
> .R67
>
> 1988
>
>
>
> If a book is not cataloged, I am able to figure out the first part of the
> Barcode should be, such as TK7888.3, but I am having trouble determining
> what numbers should follow the first letter of the author's last name; in
> this case, a 67 follows the .R which stands in for Rosch. Truthfully, I do
> not like assigning numbers indiscriminately, so if someone could provide me
> with some simple guidance for doing this, I would greatly appreciate it.
>
>
>
>  Cordially,
> John
>
>
>
> John Roy, Librarian
>
> Savannah River College
>
> 2528 Center West Parkway
>
> Building A
>
> Augusta, GA 30909
>
> [log in to unmask]
>
>
>