54 THE TONER LECTURES. 



2. The surgical troubles to be apprehended in typhus are 

 mainly restricted to gangrene and laryngeal stenosis, 103 out 

 of the 119 cases being due to these two classes of disease, 

 while typhoid bears in its train any and all of the forms 

 of disease described. 



3. The age is about the usual age of greatest frequence of 

 these fevers.' From 15 to 25 years is by far the most fre- 

 quent decade, counting 133 cases against 129 at all other 

 periods of life. One singular exception is to be made, viz., 

 the articular troubles, and especially dislocation of the hip, 21 

 out of 23 cases being under 20 years of age, of which 15 were 

 in children under 15 — in striking analogy to the frequency of 

 coxalgia in children. 



4. Sex is an unexpected and important factor in the predis- 

 position to febrile surgical troubles. Of 303 cases in which 

 the sex is named, 218 are males and 85 are females, or over 

 two and a half to one. What is the normal proportion of the 

 sexes in fever, it is difficult to determine. In nearly 6000 

 cases of t^'phoid, Murchison gives the proportions as precisely 

 equal, and in over 18,000 cases of typhus the females were in 

 a decided majority (8871-920*7). Estlander's figures would 

 give us a slight preponderance of males, while Liebermeister, 

 in over 2000 cases of t3'phoid, gives 1300 males and 750 females. 



Unfortunately, I omitted to tabulate the number of cases 

 arising in military practice, which I am sure is not inconsider- 

 able ; but while this will account to some extent for the 

 predominance of males, it could not be adduced in the cases 

 of arthritis and dislocation, since most of the patients were 

 children, yet the males were in the preponderance, 



' Leibermeister gives the ages in typhoid, as follows: 15-30, 1310; 

 30-71,- 394, total 1704. None under 15 were admitted. In typhus, 

 15-30, 39 per cent. 



Murchison gives in typhoid : 15-25, 2752 ; all other ages. 3159. total 

 5911; and in typhus, 15-25, 5332; all other ages, 12,800, total 18,138. 



