Right, alibo, hopefully better late than never, I promised I'd post for you Suzanne Olivier's schedule of introducing foods, so here it is. NB the book dates from before the 6 month weaning recommendation, so I guess some of this advice would get pushed back a couple of months.
4-8 months
Veg (except the deadly nightshade family, see below)
Fruit (except citrus)
pulses and beans
rice, buckwheat, quinoa, millet
poultry, meat, fish*
egg yolks
9-14 months
oats, barley, corn, rye
live yogurt
deadly nightshade veg (i.e. potatoes, tomatoes, aubergine, pepper)
whole eggs*
soya products*
shellfish*
15-24 months
oranges,
wheat
dairy proudcts
seeds*
nuts* (not peanuts)
5 years: peanuts
NB the asterisks denote the foods most commonly associated with true food allergy, which she distinguishes from food intolerance or sensitivities.
Interestingly she actually introduced some nuts and seeds to her son's diet at 8 months on the grounds that the risk of true allergy were very low, she did it very carefully (within reach of medical help) and the nutritional benefits are great. I think with a non-allergenic history maybe that's ok, but with my nut allergies, I'm not going to be risking it with my dd for quite a while longer.
She does make the good point that with a true allergy the child is unlikely to grow out of it, but with food sensitivities you can often remove the offending food from the diet and successfully re-introduce it later in small quantities with no ill-effects.
She also recognises that for most people with no allergenic tendencies in the family there's no need to worry about this kind of timetable, and if you've happily fed your child at 6 months something that she wouldn't introduce till 15 months, then great, no problem. Her recommendation is just for those of us who think there's a reason to be careful, or who have suspected their baby might have problems with certain foods.
Sorry this is so long!