Perry's Index to the Aesopica
Fables exist in many versions; here is one version in English:
Aesop's Fables. A new translation by Laura
Oxford University Press (World's Classics): Oxford, 2002.
THE DOG IN WINTER AND SUMMER
It was winter time and the dog was lying all curled up in a ball because of
the cold. This made him think about building a house, but when summer came,
he was once again able to sleep stretched out at full length. In fact, the dog
was so impressed by his own size that he decided not to build himself a house
after all, seeing as it would be no small job to make a house big enough to
cover, with new ISBN, published in 2008; contents of book unchanged.
Perry 449: Gibbs (Oxford) 267 [English]
Perry 449: Townsend 237 [English]
You can find a compilation of Perry's index to the Aesopica in the gigantic appendix to his
edition of Babrius and Phaedrus for the Loeb Classical Library
(Harvard University Press: Cambridge, 1965). This book is an absolute must for anyone interested
in the Aesopic fable tradition. Invaluable.