Frost himself said there were only two meters in English: strict iambic and loose iambic, by which he meant anapestic substitutions, and I think that makes any scansion of Frost using the more unusual feet suspect. Disregrading elision, I'd scan "Mowing" like this:
MOWING
There was NEV | er a SOUND | beSIDE | the WOOD | but ONE,
And THAT | was my LONG | scythe WHIS | pering TO |the GROUND.
What was IT | it WHIS | pered? i KNEW | not WELL | mySELF;
PerHAPS | it was SOME | thing aBOUT | the HEAT | of the SUN,
SOMEthing, | perHAPS,| aBOUT | the LACK | of SOUND--
And THAT | was WHY | it WHIS | pered and DID | not SPEAK.
It WAS | no DREAM | of the GIFT | of ID | le HOurs,
Or EAS |y GOLD | at the HAND | of FAY | or ELF:
ANy | thing MORE | than the TRUTH | would have SEEMED | too WEAK
To the EAR | nest LOVE that LAID the SWALE in ROWS,
NOT with | out FEE | ble-POINT | ed SPIKES | of FLOWers
(Pale ORCH | isES),| and SCARED | a BRIGHT | green SNAKE.
The FACT | is the SWEET | est DREAM | that LA | bour KNOWS.
My LONG | scythe WHIS | pered and LEFT | the HAY | to MAKE.
Now, about that elision that I disregarded. There's an essay by Richard Moore (available on the web at
http://home.earthlink.net/~arthur505/cult0397.html ) in which he claims that eleven of the fourteen lines of "Mowing" have only one anapest or none at all. If he's right, that suggests at least 3 elisions, since I've got 6 lines above with two anapests (lines 1-4, 9, and 14). Two candidates: "WHISPering" in line 2 can easily be pronounced "WHISPring," and "what was IT" in line 3 might be said "what WAS'T." But what are the others? Or is Moore just wrong about that? Robert, Tim, anybody?
Caleb -- you might enjoy that essay. Consider this passage:
"If the contemporary effort to write strict iambic has so frequently resulted in rhythms that sound like that, [a bad example from
Gorbuduc then the possibility should at least be considered that after four centuries strict iambic is indeed dead and ought to be replaced by something else. (The problem in part may be that the lines of the iambic / free verse controversy were first drawn in Whitman's time, when iambic had already lost much of its early music. In consequence, the verse of the metric conservatives, even to this day, partakes of a tradition, starting with Longfellow and Colonel Higginson, which, like A. E. Housman at his worst, valued excessive regularity and suggested to poets like William Carlos Williams the stultifying proprieties of Victorian times.)"