How to Make an Index

"[...]plural-"indexes"-instead of "indices," which even now some writers insist on using. No word can be considered as thoroughly naturalised that is allowed to take the plural form of the language from which it is obtained. The same remark applies to the word "appendix," the plural of which some write as "appendices" instead of "appendixes." In the case of "indices," this word is correctly appropriated to another use. Indexes need not necessarily be dry; and some of the old ones are full of quaint touches which make them by no means the least interesting portion of the books they adorn. John Florio's translation of Montaigne's Essays contains "An Index or Table directing to many of the principal matters and personages mentioned in this Booke," which is full of curious entries and odd cross references. The entries are not in perfect alphabetical order. A few of[...]".