No. 6. DEPAK'IMENr OF AGRICULTURE. 519 



syuiptoni constitutes the most distressing feature of the malady. 

 The spasms, which affect particularly (he muscles of the larynx and 

 mouth, are exceedingly j)ainfal and are accompanied by an intense 

 sense of dyspnoea, even when the glottis is widely opened or trache- 

 otomy has been performed." (Horsley.) These spasms are brought 

 on by any attempt to drink water, ov by touching with a wet towel, 

 and so painful is the result that patients come to dread the sight 

 of water or even liquids of any sort. It is from this symptom that 

 the name of hydrophobia (dread of water) is derived. There may 

 be maniacal symptoms with the sjiasms, and occasionally furious 

 mania is seen. This is exceptional, however. During the spasms 

 diHicuIty of breathing occurs, and curious sounds may be uttered 

 from which the exaggerated reports of people barking like dogs 

 arise. This stage lasts from a day and a half to three days and 

 is succeeded by the final or paralytic stage, which ends in death in 

 from six to eighteen hours, the heart's action becoming more and 

 more feeble and death occurring from syncope. 



Rupture of the muscles during the convulsions may take place 

 and give rise to distressing symptoms. Emphysema, or a filling 

 up of the loose tissues under the skin with air coming from the 

 lungs through tears in the pleurae also occurs at times. 



Rabies of the Dog. The disease is seen in two types, a furious, 

 and tranquil or paralytic type. 



I'uiious Type. In the furious type the first symptoms consists 

 colels in changes in the disposition of the animal, which are mani- 

 fested h\ distress or uneasiness, and restlessness. He is always 

 easily excited. At this stage, the animal does not usually show a 

 disposition to bite; he is still docile and obeys orders, though not 

 so quickly as in health; he soon seeks solitude and shows a disposi- 

 tion to hide in dark corners, or burrow in the straw of his kennel; 

 periods of calmness alternating with marked excitement are ob- 

 served; he still shows affection for his master and may respond 

 to caresses even more affectionately than is his wont. He may, bow- 

 ever, be irritated hy strangers, or being surprised by touch or blow, 

 may inflict a bite. The appetite is still good and may be even ex- 

 cessive. Soon the restlessness becomes more marked; the dog is 

 constantly in motion; he is apt to tear carpets, rugs, etc., which 

 may be in the room with him; he shows signs of delirium, looking off 

 into space, apparently seeing some imaginary object; at times he 

 will attack an imaginary enemy. He will still respond to his 

 master's voice, but his attention cannot be held for any length of 

 time. At this early stage, the voice becomes modified, and this 

 may be regarded as one of the most typical symptoms. Instead of 

 the clear and sharp bark which is natural, the latter part of the 

 note becomes prolonged and of a higher pitch, going off into a plain- 



