Lesson 05　The Cat
Lesson 06　More about the Cat
Lesson 07　Hard and Soft Bodies
Lesson 08　Porous Bodies
Lesson 09　The Dog
Lesson 10　Dogs
Lesson 11　A Piece of Clay
Lesson 12　Clay—Its Uses (Ⅰ)
Lesson 13　Clay—Its Uses (Ⅱ)
Lesson 14　The Cat's Big Cousins—The Lion