200 VETERINARY DENTAL SURGERY. 



<c Meeting Surgeon Gloag, of the Eleventh Hus- 

 sars, I told him I thought I had a case of ozena. He 

 expressed a wish to be present at the examination 

 of the head, and I was glad to avail myself of his 

 assistance. 



''A longitudinal cut was made on each side of the 

 septum nasi and a transverse one at a line between 

 the center of the orbits. Another longitudinal cut, 

 dividing the maxillary sinuses was made just above 

 the roots of the grinder teeth on each side. By this 

 means we had an opportunity of examining the sep- 

 tum nasi on each side; also the turbinated bones and 

 the frontal and maxillary sinus. 



"On the left side we found an accumulation of 

 food, covered with thick pus, completely filling the 

 maxillary sinus, and extending to the turbinated 

 bones. The frontal sinus contained an accumulation 

 of inspissated (thickened) pus, the septum nasi was 

 of a leaden hue, as also the membrane covering the 

 turbinated bones, which were much inflamed and 

 thickened, but there was no appearance of ulceration. 



"The difficulty was to ascertain how the food 

 got there. After careful search it was very evident 

 that it could not have passed through the nostril. 

 We therefore gradually dislodged the food and mat- 

 ter, searching for the former's entrance, and at last 

 found a hole in the alveolar space belonging to the 

 last grinder, the root of which was completely gone, 



