Mr. Underhill writes: "I have long been fascinated by the unusual and poetic place-names for lunar features which were created by Johannes Ricciocoli in the mid-17th century. One such name is the 'Bay of Dew' or 'Sinus Roris' in Latin. The 'Bay of Dew' is in fact a crater on the moon, but in my mind, I envisaged a tiny body of water that had been entirely created by the gradual collection of precious drops of dew as they formulated in the early morning hours."