200 DOGS I THEIR MANAGEMENT. 



RESPIRATORY ORGANS. 



THE LARYNX of the dog is affected in various ways 

 It is called a " little box," and the projecting part of this 

 organ is, in the throat of man, spoken of as *' Adam's 

 apple." It opens at the back part of the mouth, and is 

 placed at the beginning of the windpipe. All the air 

 that inflates the lungs must pass through it, but it will 

 permit nothing else to enter with impunity. A drop of 

 saliva, or the smallest particle of salt, will be sufficient to 

 call forth the most painful irritability. In fact the lining 

 membrane of the larynx is the most tender or sensitive 

 structure in the body ; and, as parts are exposed to suf- 

 fering just in proportion as they are endowed with sensa- 

 tion, of course, the organ so finely gifted is often the seat 

 of disease. 



The dog's larynx has many peculiarities. It is very 

 complicated, and exquisitely constructed. Few persons 

 have, perhaps, much attended to the notes of the animal's 

 voice ; but those who will observe the sounds may find 

 these take a range far more wide than is generally imagin- 

 ed. The dog's voice is remarkably expressive, and to 

 my ear speaks very intelligible music. The deep growl 

 is not without variety ; for by the feeling of the animal 

 that emits it the note is always modulated. The rumble 

 of expostulation the favorite gives utterance to when the 

 master pretends to take away its bone does not resemble 

 the rattle of joy with which the child's playmate accom- 



