Page 3, line 9. The extra brakets around the years in the references
to Phillips are not needed.

Page 7, line 16. The sentence that starts "This still ..." is difficult to
understand.

Page 8, line 9. The line goes into the right hand margin.

Page 11. line 9. Perhpas the "Z" should be written in lower case.

Page 18. 3rd paragraph. Personally, I do not like the sentence which
starts off with "The supernova cosmology field ..." It is a bit too
self congratulating. Also, the last sentence in this paragraph is not
necessary. Both should be deleted.

Page 19. 2nd point. There's a loose bracket at the end of this sentence.

Page 28. 3rd paragraph. It is difficult for the reader to understand
why SN 1998ax is important in the context of CMAGIC bumps. Perhaps it 
should be explained that it is a s > 1.1 SNe. It is mentioned in the same
sentence as SN 1998aw, so I first thought that both were 1.0 < s < 1.1 SNe.

Page 31. Can the information in this appendix be presented in tabular format?