PREFACE 



In writing this little book I have endeavoured to 

 cater for the beginner who has practically no know- 

 ledge of the microscope ; it is a guide for the novice, 

 and I have not presumed to offer advice to the 

 expert microscopist. The instruments described are 

 all relatively inexpensive. 



The photographs which are reproduced are my 

 own work, and were obtained by the method de- 

 scribed in the concluding chapter. 



I am much indebted to Messrs. W. Watson and 

 Sons, Ltd., R. and J. Beck, Ltd., James Swift and 

 Son, and A. Williams and Co., for loan of blocks 

 which appear in the text. I have also to acknow- 

 ledge Messrs. Watsons' kindness in lending me the 

 exquisitely mounted sUdes of which photographs 

 are reproduced on Plates 16 and 17. 



CHARLES A. HALL. 



MBiKXEEiaas, 



Paisley, 1912. 



