TO 



MES. JOHN GEEGOEY, 



MILWAUKIE, WISCONSIN. 



My DEAE LIZZIE: 



I do not know any one to whom the following pages will prove 

 more attractive than to yourself. 



Cradled, as you literally were in the midst of Microscopes ; surrounded 

 by, and throughout your early life accustomed to examine preparations of 

 all sizes and kinds, and frequently to hear descriptions of them in the 

 public lecture room, this volume, with its illustrations, must needs possess 

 greater charms for you than for most readers. 



You will be constantly reminded, when gazing on the pictorial repre- 

 sentations of well-remembered preparations, of the many delightful hours 

 we have spent together in days that are past, enraptured with the sur- 

 passing beauty of the originals ! 



But, under any circumstances, as a record of the labors of my life, I 

 cannot but think it will ever be acceptable to you ; moreover, I venture 

 to hope it will be found of some value in your family, by contributing to 

 the education of your own children. 



It is a subject of deep regret to me, that I have been deprived of your 

 judicious, keen criticism ; but, with all its faults, I dedicate this book to 

 you, as the least testimonial I can offer of a Father's fond affection. 



That you may long enjoy every earthly blessing, is the sincere and 

 heartfelt wish of, 



My Dear Child, 



THE AUTHOR. 



