4 
Grammar, spelling, punctuation, etc. 
1, Plurals that .may cause difficulty: 
appendix, appendixes 
basis , bases 
da tun, da ta 
formula, formulas 
maximum, maximums 
minimum, minimums 
medium, mediums or media 
miniitia, minutiae 
parenthesis, parentheses 
phenomenon, phenomena 
stimulus, stimuli 
synopsis, synopses 
criterion, criteria 
2, Type as one word compass directions consisting of tw'o points, 
but use a hyphen after the first noint when three points are 
combined: =» 
norlxheast north-northeast southwest south-southwe‘31 
3« Do not use a comma to separate the month and year in a date: 
On July 1953 On 5 July 1955 we visited 
4. Avoid using split infinitives 
3 , Effect as a noun means result; as a verb means to bring about, 
accomplish. Alfect means to influence. 
if 
