It's Surely Summer. For There's A Swallow:

What Is Green? The Grass Is Green, With Small Flowers Between. What Is Violet? Clouds Are Violet In The Summer Twilight. What Is Orange? Why, An Orange, Just An Orange!

For There Is No Friend Like A Sister In Calm Or Stormy Weather.

What Are Heavy? Sea-sand And Sorrow. What Are Brief? Today And Tomorrow. What Are Frail? Spring Blossoms And Youth. What Are Deep? The Ocean And Truth.

What Is Pink? A Rose Is Pink By The Fountain's Brink.

I Watched A Rose-bud Very Long Brought On By Dew And Sun And Shower, Waiting To See The Perfect Flower: Then When I Thought It Should Be Strong It Opened At The Matin Hour And Fell At Even-song.