TO 



EOBEET KAYE GEEYILLE, M.D., 



EDINBURGH, 

 AND TO 



WILLIAM HENEY HAEYEY, M.D., 



PROFESSOR OF BOTANY, DUBLIN, 



THIS LITTLE WORK, 



IN WHICH THEY HAVE KINDLY AIDED HIM, 



IS, 

 WITH MUCH RESPECT AND ESTEEM, 



DEDICATED 



BY THEIR GRATEFUL FRIEND, 



THE AUTHOE. 



