LONDON:BRADBURY, AGNEW, & CO., PRINTERS, WHITEFRIARS.
I Dedicate this little Book
TO MY VENERABLE FRIEND,
DR. JAMES SCOTT BOWERBANK,
F.R.S., &c.,
ONE OF THE ORIGINATORS OF THE WATER VIVARIUM;
TO WHOSE VALUABLE ADVICE AND CHEERING ENCOURAGEMENTI, LIKE MANY OTHERS, AM INDEBTED FOR THE CONFIRMATIONAND INCREASE OF AN EARLY LOVE OF THESTUDY OF NATURAL HISTORY.
H. L.