62 DARWINISM AND RACE PROGRESS. 



history is to be observed. I have arranged the 

 greater number of facts given in Table 17 in the 

 following table, so as best to bring out those points 

 which we are discussing. In the first group of 

 disease are those due to micro-organisms, and a 

 diminution of these diseases to a marked extent is to 

 be observed of late years. Phthisis and scrofula placed 

 by themselves in this group share in this decrease. 

 In the second group are diseases that are due in 

 great measure to carelessness, want of management, 

 neglect and ignorance, such as convulsions, diseases 

 of dentition, parturition and registered accidents. 

 These, too, as one would expect, diminish yearly in 

 a country where surrounding comforts and a sense 

 of responsibility are on the increase. When we turn 

 to the third group, that of constitutional disease, 

 where the hereditary tendency comes in, we find an 

 increase in almost all the hereditary diseases. A 

 tendency to an increase of neurotic affections is 

 shown by an increase in the deaths from nervous 

 diseases, suicide and intemperance. A large increase 

 in the diseases of the respiratory system is due in 

 part to the increasing number of tuberculous patients 

 who, kept from inroads of microbes, nevertheless 

 readily fall a prey to other affections : there is, too, 

 an increase in diseases of the circulatory system, 

 in cancer, diabetes and other constitutional dis- 

 feases. 



