None of the Above

Q. In Chicago 16, 16.10, it says that “an entry that requires more than five or six locators (page or paragraph numbers) is usually broken up into subentries to spare readers unnecessary excursions.” (1) Does that mean five or does it mean six? I use your style manual in order not to make such decisions myself. (2) Do you have a similar criterion for the number of subentries that should be broken down into subsubs?

Q. Is there a preferred way to refer in text to a specific column or row in a table? I tend to reuse the text in the column heading or stub entry rather than a number, just because I think it’s clearer that way. For example, “See ‘Countries’ column” rather than “See column 4.” Is that wrong?