So at least I interpret my SPRIGGS.

Next, the harder it freezes or snows
The greater the value of fat,
And the larger the appetite grows
Of John, Sandy, Taffy and Pat.
(Conversely, in Midsummer days,
When liquid more freely one swigs,
Less viand the appetite stays--
This quatrain's a gloss upon SPRIGGS).

For strenuous muscular work
A larger allowance of grub
We need than is due if we shirk
Exertion, and lounge in a pub;
For the loafer who rests in a chair
Everlastingly puffing at "cigs"
Can live pretty nearly on air,
So I gather at least from my SPRIGGS.

Why children need plentiful food
He nextly proceeds to relate:
Their capacity's larger than you'd
Be disposed to infer from their weight;
They're growing in bulk and in height,
They're normally active as grigs,
And exercise breeds appetite--
This stanza is absolute SPRIGGS.

Last of all, with an eloquent plea