INTRODUCTION. 



The scope of this manual is intended to cover a brief statement of 

 the important facts of Microscopy, Histology, Bacteriology, and 

 Urinalysis. 



Microscopy, in a liberal sense, is the microscopic study of natural 

 objects. In a more restricted sense, it is the study of the microscope, 

 its structure and manipulation, and of microscopic technique. 



Histology is that department of Biology which treats of the mi- 

 nute anatomy of plants and animals. Animal Histology deals with 

 the microscopic structure of animals ; Vegetable Histology, with that 

 of plants. Animal Histology consists of two departments name- 

 ly, Normal Histology and Pathology. Normal Histology deals with 

 cells and tissues in their normal, or healthy, state. Pathology deals 

 with these structures as affected by disease. There is an intimate 

 relation between Normal Histology and Pathology. Disease affects 

 the cells, and the student must understand the character of the cells 

 in a condition of health before he can adequately comprehend their 

 pathological condition. 



Bacteriology is that department of Botany which treats of bac- 

 teria minute, unicellular, chlorophylless fission-plants. 



Urinalysis is the examination of the urine by physical, chemical, 

 and microscopical tests, by means of which its normal or patholog- 

 ical condition is determined. 



[7] 



