Mister Rogers shows the difference between hardboiled and raw eggs. He uses a candlestick and an old shoe to remind children of "Jack-Be-Nimble" and "The Old Woman Who Lived in a Shoe". He recited "Humpty Dumpty" and gives harboiled eggs to Carol Saunders and some children that she brought along. The Neighborhood of Make-Believe segment is a kinescope of "Misterogers" (CBC, Jan. 30) about nursery rhymes. Barbara Hamilton is featured.