Perry's Index to the Aesopica
Fables exist in many versions; here is one version in English:
THE CAMEL IN THE RIVER
As the humpbacked camel was crossing a swift-flowing river, she relieved herself.
Then, when she saw her excrement floating out in front of her, the camel remarked,
'Oh, this is a bad business indeed: the thing that should have stayed behind
has now moved up to the front!'
Aesop's Fables. A new translation by Laura
Oxford University Press (World's Classics): Oxford, 2002.
cover, with new ISBN, published in 2008; contents of book unchanged.
Perry 321: Gibbs (Oxford) 565 [English]
Perry 321: Babrius 40 [Greek]
Perry 321: Chambry 144 [Greek]
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.