Cutouts or dispensable marginal areas may also be given. Where possible, photographs should be grouped, bearing in mind that the maximum width is 168 mm. Symbols, formulae and equations should be written with great care, capitals and lower case letters being distinguished where necessary. Particular care should be taken in typing mathematical expressions containing superscripts, and in proof-reading such e quations. Unusual symbols employed for the first time should be defined by name in the left-hand margin.
Abbreviations require definition when first used.
They should be corrected and one copy returned to the publisher as soon as possible. Misprints only should be corrected, and no changes of contents or style should be made on the galley proofs. Orders for additional offprints against payment should be given when returning the corrected proofs. Order form and price list will be sent with the proofs.