[19] e.) From such parts of Oriental names as require it.

[20].) From the names of English sees and deaneries. {36}

[20] c.) From the maiden names or unused married names of wives to the one used in the catalogue, provided they have written under the earlier names or for any other reason are likely to be looked for under them.

[21].) From the family names of British noblemen to the titles, or vice versâ, if the entry is made under the family name.

From the family names of foreign noblemen, when they are known by them wholly or in part.

From any other title by which a man may be better known than by his real name.

As, “Claimant, The.” The Diary of the Shah of Persia, catalogued under Nassr-ad-Din, requires a reference from Shah.

[22].) From the earlier forms of names that are changed.

[23].) From the part of compound names which is not used for entry to the part which is, whenever it seems necessary.

[24].) From the prefixes of foreign names when they have been commonly used in combination with the last part.