Substrate effects in Germanic? Verner first?

[David Webster Hare Cochran]

----------------------------Original message----------------------------
I'm looking for information/references re. a couple of theories regarding early
 Germanic;

1; that the 1st Sound Shift, Accent shift and simplification of tenses represent
 substrate effects from the impossition of and Indo-European speech upon a
 non-Indo-European group of speakers, possibly Basque or Finno-Ugric.

2; That Verner's Law preceded the 1st Sound Shift.

This is somewhat urgent, as it is for a paper due for submission next Wed. Any
 help would be greatly appreciated,

Thanks,
David Cochran,
Department of English Language,
University of Glasgow.