Aired: May 13, 1968 | Season: 1 | Episode: 61

Overview
Runtime: m
Directed by: David Fu-Ying Chen
Written by: Fred Rogers
Guest stars: Professor Joseph Fitzpatrick
Description
Rogers makes mud pies and builds a dam. Professor Fitzpatrick illustrates a calm sea and a rough sea. In the Neighborhood of Make-Believe, Corny and Joey Hollingsworth dig a well. Hollingsworth is then assigned to sell rockers.

