From Peter Janssen:
â?¢	This is a highly technical paper, large parts of which will be difficult for a general reader. However, if Bill Martin is OK with this, then itâ??s fine with me. His CV is almost equal to that of the whole of AgResearch Grasslands (SCOPUS h-index of 57 for Bill Martin, 62 for AgResearch Grasslands).
â?¢	Dissociation value should probably be in kJ/mol (SI units).
â?¢	â??16S rRNA geneâ?? rather than â??16Sâ??.

From Graeme Attwood (sent electronic copy with a few wording suggestions back to Ron):
I attach a few minor comments.  It reads well, my only concern is that it may be too technically heavy for the Science audience, but the work is of a calibre that should aim for high impact.