verse: Thy words had such a melting flow,
       And spoke of truth so sweetly well,
       They dropp`d like Heaven`s serenest snow,
       And all was brightness where they fell.
? Who was the author and what is the title , if any ?

Hello.

The words seem to be an altered version of something from Thomas
Moore's HYMN OF A VIRGIN OF DELPHI, AT THE TOMB OF HER MOTHER:

"...All that the young should feel and know
By thee was taught so sweetly well,
Thy words fell soft as vernal snow,
And all was brightness where they fell!"

http://www.fullbooks.com/The-Complete-Poems-of-Sir-Thomas-Moore4.html


Indeed, Moore is credited with a version that's a bit closer to what
you cite in an 1850 oration at Harvard:

"If for good, we realize Moore's description:--

Thy words had such a melting flow,
          And spake of truth so sweetly well,
They dropped like heaven's sereness snow,
          And all was brightness where they fell."
http://www.law.ua.edu/directory/bio/abrophy/walker.html


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thank you for your prompt attention.