Margaret Thayer...said that she imagined Cinderella's glass shoes to be exactly of that greenish blue tint; whereupon Professor Pain remarked that...Cendrillon's shoes were not made of glass but of Russian squirrel fur — vair, in French. It was, he said, an obvious case of the survival of the fittest among words, verre being more evocative than vair which, he submitted, came not from varius, variegated, but from veveritsa, Slavic for a certain beautiful, pale, winter-squirrel fur, having a bluish, or better say sizïy, columbine, shade — 'from columba, Latin for "pigeon ", as somebody here well knows — so you see, Mrs Fire, you were, in general, correct.'...('I always thought "columbine" was some sort of flower,' said Thomas to Betty, who lightly acquiesced.)

SHORT-STORIES:  The Thunderstom: "The courtyard was empty, except for the old, shaggy dog with its graying muzzle that had thrust its head out of the kennel and was looking up, like a person, with frightened hazel eyes. I looked up too. Elijah had scrambled onto the roof, the iron hoop glimmering behind his back."* 

*shaggy dogs are recurrent themes, present in Nursery tale, Lolita, Pale Fire... even in TOoL ( a black bag) ... They apply mainly to Skye-terriers with weeping-willow ears; Cinderella and Cendrillon are also recurrent themes, as are "squuirrel" and "columbine", cf. Ada, RLSK, aso.