Here are the lyrics from John McCutcheon's http://www.folkmusic.com Website, which are slightly McCutcheonized.

     C                                   G
  1) Over in the meadow in a pond in the sun
         Am                      F      G       C
  Sat an old mother frog and her little froggie one
   C                      F C
  "Hop" said the mother, "I hop" said the one
           Am                           F    G      C
  And they hopped and were happy in the pond in the sun
  
2) Over in the meadow in a worn out shoe
  Sat an old mother cat and her little kittens two
  "Purr" said the mother, "we purr" said the two
  And they purred and were happy in the worn out shoe
  
3) ...nest in a tree...bird (birdies)...sing
  
4) ...old apple core...worm (wormies)...squirm
  
5) ...old bee hive...queen bee (bees)...buzz
  
6) ...house made of sticks...dog (puppies)...bark
  
7) ...tree of heaven...owl (owlets)...hoot
  
8) ...old packing crate...duck (ducklings)...quack
  
9) ...a ball of twine...mouse (mice)...squeak
  
10) ...cozy little den...spider (spiders)...spin