Poetry: Edna St. Vincent Millay?

[radamandeep]

I need help on some questions for this poem.

If I should learn, in some quite casual way,
That you were gone, not to return again --
Read from the back-page of a paper, say,
Held by a neighbor in a subway train,
How at the corner of this avenue
And such a street (so are the papers filled)
A hurrying man -- who happened to be you --
At noon to-day had happened to be killed,
I should not cry aloud -- I could not cry
Aloud, or wring my hands in such a place --
I should but watch the station lights rush by
With a more careful interest on my face,
Or raise my eyes and read with greater care
Where to store furs and how to treat the hair.
--Edna St. Vincent Millay

1. What form of poem is this?
2. What is the poem's meter?
3. What is the poem's tone?
4. Is this poems content traditional or nontraditional?

Any kind of help is appreciated. Here are my answers for some of the questions, if you think differently please let me know.

1. I would say its a sonnet. I need examples as to why its a sonnet(those I don't know)
2. I have no idea what the meter is.
3. I would say the poem's tone is constant and somewhat unemotional. Examples would be the last couple of lines.
4. I would say its nontraditional, but I don't know why.

Thanks!