VI 
PREFACE TO SECOND EDITION. 
In preparing this edition for the press, a few papers have been 
omitted, because the lapse of time had destroyed their value. The 
places of those few papers have been filled up with essays written 
for the work. The reviewers of the first edition are not respon¬ 
sible for these; and if this edition is anywhere deemed worthy of 
notice, it is hut right I should call attention to the papers on 
“The Rainbow” and “ Fido Fides,” as new, and as expounding 
views in which, possibly, neither my reviewers nor my readers 
will concur. 
S. H. 
