You lose *some* opportunities for serendipity, but you gain others. In many online catalogs, for instance, the authors, subject headings, alternative breastles, and call...
cp67-cms had a source *update* appliatiion called *update* that used sequence numbers on card images (default field in cols 73-80) it would...
The practice at our library was to put a red filing flag in front of newly-filed cards for the lead to check. Leaving the cards on top of the rod would have been an invitation to disaster: spilling them at least, or patrons taking the cards to the shelves with them instead of writing down the call number at worst.
Incidentally, we were still filing a few cards for special circumstances right up to last Spring. The student buttistant I had doing it did a fine job of filing, and I know because I am the one who checked her work.
kkt My heart bleeds! Going to the main-entry card and following the tracings found there was a standard research technique and not the least bit impractical, though...
A number of them used rules closer to the Library of Congress rules. LC rules made intelligent use of the punctuation indicating different types of subdivisions. That made them easier for experienced people, but harder to learn initially.
One of my favorites is for arrangement of cards for specific books of the Bible. Instead of alphabetically, they'd go in canonical order:
Bible. O.T. Genesis Bible. O.T. Exodus Bible. O.T. Leviticus Bible. O.T. Numbers Bible. O.T. Deuteronomy etc.
I think that rule was dropped from later versions of the LC rules, though.
I don't think the LC MARC cards could deal with non-Roman alphabets except by Romanizing them. At least they couldn't before our library system switched to OCLC cards. But they could deal with all sorts of diacritical marks on the Roman alphabet, long before ISO or Unicode.
And in the pre-MARC cards, if there was a non-Roman script involved, they'd print or hand-engrave any necessary script for the parts of the catalog record copied directly from the book. MARC records romanized them all instead.
Then OCLC cards were uglier and harder to read as well as romanized.
And then there were no more cards...