From the preface:
Notwithstanding the number of Nursery Rhyme-Books already in existence, there is still room for additional ones, especially such as, being set to Music, and enlivened by humorous Wood-cut Illustrations, shall thereby recommend themselves to the growing taste and sentiment of the day.
Such a little book is the present. The Rhymes have been selected with the greatest care. The playful simplicity proper to the nursery has been studiously observed, while every word or allusion in the slightest degree questionable, has been excluded. […] composed in that spirit of simplicity which from time immemorial has given their charm to the Songs of the Nursery. They are arranged in Two Parts, so that while the children sing the melody, the second part may be taken by Mamma or Nurse.