Sparkey asks "Where we goin', boys?". The mate replies

"Oh, we're bound for the Hamburg show [off to the Hamburg Zoo] [wild west show],
To see the elephant and the wild kangaroo,
An' we'll all stick together
In fair or foul weather,
For we're going to see the damn show through!"

"And in this corner we have the lion, the only pussy that eats you", etc

Definately found at sea by John Dos Passos in 1920