vi PREFACE. 



the subject at a time when its details were not taught 

 as they now are. Care has been taken to render all 

 instructions as definite as possible, and the advanced 

 student will find in Part I. such directions for the 

 preliminary preparation of the tissues as will enable 

 him to work through the Histological Demonstra- 

 tions in Part III. without embarrassment. The 

 paragraphs in small type are especially intended for 

 the advanced student. 



These Outlines are essentially the Notes of the 

 course of Practical Histology given by me in King's 

 College, London, and in the University of Edin- 

 burgh. That course is conducted on the principle 

 that, inasmuch as the time at the disposal of most 

 students of medicine is very limited, the only 

 practicable method of teaching large numbers is 

 what may be termed the regimental system, whereby 

 the students all work at the same moment, at one 

 subject, and are addressed collectively. In this 

 way classes, under thirty in number, can be con- 

 ducted through the leading points of Practical His- 

 tology in about thirty-six lessons, extending from 

 an hour to an hour and a half. As it is impossible in 

 this short time to prepare every desirable microscopi- 

 cal specimen, special demonstrations are made by the 

 teacher in order that the introduction to the subject 

 may be as comprehensive as possible. The special 



