From Rude Rural Rhymes by Bob Adams, New York: The Macmillan Company; 1925; p. 82.
THE TESTED HERD
This is the farmer who said “By darn,
I’ll build me a big red dairy barn.”
These are the black and white, tested cows
That stand in the stable beneath the mows,
On the farm of the farmer whose big red barn
Is the starting point of all this yarn.
These are the kiddies as fine as silk,
Because they drink so much of the milk
That comes from the black and white, tested cows,
That stand in the stable beneath the mows,
On the farm of the farmer who builded a place
For the foster-mothers of all the race.
These are the carrots and beets and beans
Which furnish some more of the vitamines,
To help raise kiddies as fine as silk
Who drink, each one, a quart of the milk,
That daily comes from the tested cows,
That stand in the stable beneath the mows,
On the farm of the public benefactor
Who has rid his herd of the last reactor.