126 Roaring in Horses. 



either on board ship, or after landing — in the former case 

 by the heat between decks, especially among those horses 

 that were in the lower hold, and by the emanations from 

 the excretions ; and in the latter by climatic causes, filthy 

 water, etc. — and which became aggravated by exhaustion. 

 In some cases the fever may have been so slight as to pass 

 unnoticed. I think in some horses, more especially the 

 draught ones, the Roaring might have been caused by the 

 muscles of the larynx becoming partially or wholly paralyzed 

 from over-exhaustion, 



" I may mention that I brought to this country a half- 

 bred mare, perfectly sound in every respect. On the voyage 

 out she suffered from rather a severe attack of fever ; she 

 was placed in the upper deck with other horses, the weather 

 being fine. The day we landed she met with an accident 

 which caused her to be left behind at the sick depot at 

 Ismailia. She remained there about seven weeks, arriving 

 at Cairo about the 1st of October. She soon after began to 

 show symptoms of Roaring ; at first it was slight, but it 

 gradually increased. I took her home in March, 1883, 

 She never recovered, and when I left England, in March, 

 1886, she was still a bad Roarer. She was very high- 

 spirited, and the least excitement, even at a walk, caused 

 her to roar so badly that she could be heard at some 

 distance. 



" Veterinary Surgeon Griffiths states that a large number 

 of the horses of the regiment (7th Dragoon Guards) he served 

 with in 1882, became Roarers soon after landing. He attri- 

 buted it to the excessive heat on board ship, the horses 

 perspiring a great deal ; and as the vessel changed her course 

 a sudden current of air would rush through the port-holes, 

 which, he thinks, caused the horses to be chilled. 



" He adds that one of his own horses commenced to roar 

 soon after it arrived in Egypt, and, by January, roared so 

 badly that it could be heard a long way off. He sent the 

 animal home in February, 1883. It was then a very bad 



