Be kind and tender to the Frog...

George Albert Boulenger:
The tailless batrachians of Europe, 1897-98
link

Be kind and tender to the Frog,

And do not call him names,

As ‘Slimy skin,’ or ‘Polly-wog,’

Or likewise ‘Ugly James,’

Or ‘Gape-a-grin,’ or ‘Toad-gone-wrong,’

Or ‘Billy Bandy-knees’:

The Frog is justly sensitive

To epithets like these.

No animal will more repay

A treatment kind and fair;

At least so lonely people say

Who keep a frog (and, by the way,

They are extremely rare).

by Hilaire Belloc (1870-1953)

Chromolithographic print by Julius Bien & Company:
American Frogs and Toads
Purchase it here