DR. THOMPSON, ON PULMONARY CONSUMPTION. 229 



venture on a diagnosis. Under the microscope the correctness of this 

 opinion is usually established by the appearance, mixed with pus corpus- 



Fig. 3. 



Fig. 4. 



cles, of the unmistakable shrivelled cells, granules, molecules, and oil 

 globules (see fig. 5), not unfrequently also of the cm'led elastic tissue 

 surrounding the pulmonary vesicles. 



Fiff. 5. 



Fig. 6.' 



Every one must feel, after reading this passage, that how- 

 ever imperfect the assistance yet obtained by the practical 

 physician from the use of the microscope, that in the course 

 of a short time it will form one of his important means of 

 diagnosis, 



* Fig. 6 represents the same after the application of acetic acicL 



