208 ANIMAL PAEASITES. 



the issue gradually diminished, and in a fortnight the boy 

 had recovered. The same patient had also a fluctuating boil on 

 the lower lip. When this was opened with the lancet, a thin, 

 watery matter flowed out, and besides this a living worm of the 

 colour, form, and size of the common maggot. Thorstensohn 

 explains this by supposing that the egg of a fly had got into a 

 crack in the lip, and that the latter had then closed up before 

 the egg was hatched." 



An interesting account of a case, which may serve as a model 

 for Echinococci in the lungs, is given by Vigla, in the c Archives 

 generales/ for September, 1855. 



It is true that the celebrated blow (" Stoss"), in this case from 

 an ox, still plays its part, but in other respects it is very well 

 described. The symptoms were, pain in the breast in the neigh- 

 bourhood of the right mamma, especially during motion, difficulty 

 of breathing, absence of cough and expectoration, emaciation, 

 ansemia, and impossibility of lying on the left side the patient 

 could only lie on the right side or on the back ; the voice weak 

 and altered, as in compression of the trachea, or nervi recurrentes ; 

 the right side of the chest much arched, and the intercostal spaces 

 and cutaneous veins dilated. The left side of the chest was only 

 more developed behind in consequence of the coexistence of 

 scoliosis. 



Centim. 



Circumference of the right half of the chest at the level of the 7th dorsal vertehra 43 



left 7th 39 



right under the axillae . . 41 



left ... 39 



Percussion over the whole anterior portion of the right side 

 of the chest, with the exception of the uppermost intercostal 

 space, and down on the right side to the navel, throughout 

 a length of 28 centimetres, was dull. The dulness also passed 

 backwards to the angle of the right shoulder-blade, and even a 

 little beyond this towards the left. The lobes of the liver, which 

 were pushed obliquely upwards, had displaced the heart, and 

 pressed it up into the left axilla, where the sounds of the heart 

 were audible. The respiratory murmur was absent throughout. 

 In front, fluctuation was felt in the right intercostal spaces. 



