cxlvi 



THE BEGINNINGS OF LIFE. 



US concerning the infective diseases as a class, our difficulties 

 will be much diminished : simple and obvious conclusions 

 will appear. 



/ Many of them 

 capable of 

 arising de 

 novo. 



Parasitic Diseases affecting— 



r External (cutaneous) surface. 



I Internal (mucous) surfaces. 



j Closed (serous) cavities. 



■^ Tissues of organs or parts. (Psorospermi(Z, 



I Cysticerci Ne^natoids, etc.) 



I Blood. (Bactei-idia in ' Malignant Pustule, 



*- PsorospermicE in ' pebrine,' etc.) 



Apparently 



caused and 



propagated by the 



presence and 



self-multiplication 



of living units. 



TISSUE Diseases. 



Diseases of Internal Formed Tissues and 

 of Mucous Membranes, 



All inoculable 



ind capable of 



arising de 



novo. 



r Fibro-plastic growths. 



[ Cancerous growths. 



I Tubercular growths. 



I Glanders. 



1 Syphilis. 



I Gonorrhoea. 



I Purulent ophthalmia. 



L Diphtheria and Croup. 



B. Diseases of the Blood (principally). 



All cojitagious 



and capable of 



arising de 



novo. 



Contagiozcsness 

 either absent, 

 little -marked, 

 or more or less 

 ■virulent; all 

 probably capable 

 of arising de 

 novo. 



I Erysipelas. 

 I Puerperal fever. 

 J Surgical fever. 

 I Pyeemia. 



Hospital gangrene. 

 L Rabies. 

 - Rheumatic fever. 



a. Dengue. 



b. Sweating Sickness. 

 Intermittent fever. 



a. Remittent fever. 



b. Yellow fever. 

 Summer diarrhoea. 



a. Choleraic diarrhoea. 



b. Cholera. 

 Dysentery. 

 Influenza. 

 Mumps. 



Relapsing fever. 

 Typhoid fever. 

 Typhus fever. 



a. Cerebro-spinal me- 



ningitis? 



b. Plague. 

 Varicella. 

 Hooping-cough. 

 Measles. 



L Scarlet fever. 

 Small-pox. 



Principally 

 sporadic. 



Principally 

 endemic. 



Often 

 epidetnic. 



Caused and 



propagated by 



I chemico-physical 



(■ agencies, ana 



not by the 



multiplication of 



living units. 



In the first place, we find a group of diseases due to the 

 presence upon or within the body of parasitic organisms. 

 These are partly local and partly general affections, the latter 

 being intensely contagious, and on that account frequently 

 confounded with other general infectious diseases in which 

 living organisms do not occur. These general parasitic 

 diseases are propagated by the presence and multiplication 



