Author's Apology.

Not every one is always able

To recognize a vegetable,

For some are guided by tradition,

While others use their intuition,

And even I make no pretense

Of having more than common sense;

Indeed these strange homologies

Are in most flornithologies,

And I have freely drawn upon

The works of Gray and Audubon,

Avoiding though the frequent blunders

Of those who study Nature's wonders.