All Kinds of Babies

1953

Animals of the Sea

1975

Backyard Insects

1980

Benny's Animals and How He Put Them In Order

1966

Big Tracks, Little Tracks

1958

Birth of a Forest

1964

Birth of an Island

1959

Catnip

1983

Egg to Chick

1946

Greg's Microscope

1963

How Kittens Grow

1973

How Puppies Grow

1971

Keep Looking!

1989

Let's Get Turtles

1965

More Potatoes

1972

Night Animals

1979

Plenty of Fish

1960

Sea Monsters of Long Ago

1977

Seeds and More Seeds

1959

Terry and the Caterpillars

1962

Tony's Birds

1961

Where Do They Go?

Insects in Winter

1981