Say the word “autumn” and you evoke images of brightly-hued leaves, baskets of apples and harvests of pumpkins.  In New York City, especially for parents of four-year-olds and older students looking to transition next year, you also provoke anxiety about the admissions process:  when can you visit schools, what will they require of you and of your children, how can you tell if a school is the right school for your child and your family?