Here's the excerpt:

O, then I see Queen Mab hath been with you.
She is the fairie’s midwife, and she comes
In shape no bigger than an agate stone
On the forefinger of an alderman,
Drawn with a team of little atomies
Athwart men’s noses as they lie asleep;
Her wagon spokes made of long spinners’ legs,
The cover, of the wings of grasshoppers;
Her traces, of the smallest spider’s web;
Her collars, of the moonshine’s wat’ry beams;
Her whip, of cricket’s bone; the lash, of film;
Her wagoner, a small grey-coated gnat,
Not half so big as a round little worm
Pricked from the lazy finger of a maid;
Her chariot is an empty hazelnut,
Made by the joiner squirrel or old grub,
Time out o’ mind the fairies’ coachmakers.