l>f)ST-]M()RTKM APrKAUANCKS. 87 



nations. In most instances the mucous membranes, 

 especially of the respiratory system, are the prhicipal 

 parts affected : the serous membranes, however, do not 

 escape ; but, for the sake of perspicuity, we shall de- 

 scribe seriatim the lesions of the different organs. 



The condition of the common integument will de- 

 pend altogether on the time that the animal survives. 

 If death takes place in the early stages, papular eleva- 

 tions, a few of them covered with vesicles, are abun- 

 dantly spread over the surface of the body : in the 

 latter stages, ulcers of various size and depth are met 

 with. The skin also varies in colour, being in some 

 parts of a red, in others of a blueish-black hue, and 

 every where the slightest force will separate the wool 

 from its foUicles. The sub-cutaneous areolar tissue 

 is more or less engorged with blood, and purulent 

 formations often exist immediately beneath the con- 

 fluent papulae. Infiltration of albuminous serum into 

 the cellular tissue of the face and the extremities is 

 occasionally present. The conjunctiva and transparent 

 cornea in many instances are free from disease, but 

 now and then give signs of approaching ulceration. 

 The pituitary membrane always exhibits an abnormal 

 condition ; but in different animals it presents various 

 degrees of sanguineous congestion, and is frequently 

 so much inflamed that disorganization ensues. In 

 many cases it is studded here and there with mucous 

 vari of a light copper colour : these vari, which we have 

 elsew^here called yellowish spots or nodules, are doubt- 

 less internal papulae modified by the structure on which 

 they are developed ; Jig. 1, plate 4, gives a representa- 

 tion of them. Hurtrel D' Arboval, in his description of 

 the claveUe, seems to doubt the existence of papulae 



