vi
PREFACE.
The work is slight in texture, as compared with the depth and fulness of meaning involved in the phenonena selected for illustration; but profound discussion was not within either the writer's design or her ability. Many interesting particulars in all the subjects considered have been left unnoticed, from the difficulty of arriving at a satisfactory explanation of them; whilst others may, possibly, be discerned for which deficient knowledge is the only excuse.
Such as it is, this little volume is submitted to the reader in the hope that it may yield some small amount of benefit and gratification.
London, September 1870.
