THREADWORMS. 97 



which had proved so successful ; but I have not 

 since learned what results followed. I think it 

 quite possible that if in place of the bromide I had 

 prescribed the ferro-cyanide of potassium a further 

 improvement in the nervous system would have 

 continued to show itself. 



In regard to the prevalence of ascarides amongst 

 children, it is well known that they are extremely 

 common, and that their presence is frequently over- 

 looked; but there is this to be said also, that when 

 detected they are as a rule less difficult to get rid 

 of than obtains in the case of adults. The reason 

 of this is no doubt partly owing to the circumstance 

 that the bowels are much more readily cleared by 

 simple purgatives. The folds of the intestines are 

 less numerous, and present fewer opportunities for 

 the parasites to avoid the action of the remedies. 

 In very bad cases, however, the most active purga- 

 tion is of little avail, save as affording temporary 

 relief. Undoubtedly saline draughts and copious 

 enemata frequently constitute the most simple and 

 effective treatment. I have tried various other 

 remedies with more or less success. Here are 

 a few cases selected more on account of the 

 symptoms and other peculiarities than as illus- 

 trating the comparative merits of particular 

 remedies. 



CASE LV. P. B., a respectable lad, ten years 

 of age, sought my advice in the spring of 1870. 



H 



