Cip 



PREFACE. 



THE first thought of this little book was suggested by 

 an Optician, who, having a large sale for Microscopic 

 Objects, and being often perplexed by the questions of 

 his customers, as to the nature of the objects before 

 them, requested me to write a Catalogue of the Slides 

 in his cabinet, to which he might refer the inquirer. 



It was a pleasant occupation ; and, as drawer after 

 drawer was opened, and every slide examined, the 

 description of each swelled the small pamphlet into this 

 little book, whose object is solely to accompany the 

 Object-box and explain its contents. There are no 

 engravings, because the mounted objects are the truest 

 and best illustrations, infiDitely more interesting than 

 the highest delineations of art. A little expense and a 

 little trouble will procure them all. 



Microscope books there are many, and some of them 

 most excellent ; such as 



' Quekett on the Microscope/ 



' Carpenter on the Microscope/ 



' Hogg on the Microscope/ 



' How to Work with the Microscope/ by Beale ; 

 but although they abound in illustrations, and give all 

 necessary information for preparing objects, I have 

 myself experienced how much more is learnt by the 



M35J5391 



