MICROSCOPICAL DIAGNOSIS. 



stance with hectic; in 18 of these cases they found the elastic fibres. 

 In one case the absence of fibres corresponded with temporary 

 improvement. Of n cases of chronic phthisis, with unmistakable 



10. Fragments of lung f issue (yellow elastic fibres.} Sputa 

 from case of phthisis. Mucus, />//y, epithelium^ granular 

 matter, etc., were in great abundance. 



signs of lung destruction, elastic fibres were found in all. In 75 

 per cent, of cases of consolidation they found the elastic fibres 

 present, which shows, they say, how frequently destruction is going 

 on' although the physical signs are those of consolidation only. In 

 one-third of the cases of slight consolidation elastic fibres were 

 found. In many cases, then, in spite of seeming temporary 

 improvement, the microscope will decide that destructive changes 

 are still going on. 



The rusty color of the sputa of pneumonia is due to the pres- 

 ence of escaped red blood-corpuscles, and as their estape is gradual 

 they become thoroughly mingled with the exudate. 



VOMITED MATTERS. 



The examination of vomited matter requires no special direc- 

 tions. The great variety of material met with in the vomicae 

 renders it necessary that the examiner be familiar with the general 

 microscopic character of nearly all the tissues, animal and vegetable. 



