966 VETEEINAEY HYGIENE 



as his ' necessary sacke of carriage.' In fact, so far as our 

 inquiries go, there is nothing to indicate the cavahy carried 

 anything on the saddle until after the middle of the 18th 

 century. 



History will have to repeat itself in this as in many other 

 things. The present air line so largely used for the tying 

 up of horses in camp (p. 949) was employed by the French 

 cavalry before 1750; and our cavalry will have to come 

 back to a spare horse for each man, on which will be 

 carried the lightest of kit for the man and rations for two 

 horses. It was this system which enabled the Boers to 

 move in the way they did during the late war, and some of 

 their men had three horses. 



This is no place to discuss the question of how these 

 spare horses are going to be led or driven ; they will have 

 to be tied up in groups, and it is hoped the object lesson 

 figured at p. 953 will not be forgotten. 



Glanders as a source of loss on service does not figure 

 in the table on p. 959, as this only represents existing 

 sickness. The disease is generally speaking rife, and the 

 larger and more extended the operations the more is it 

 spread. The rule to adopt during war is to destroy only 

 the clinically affected ; nothing can be done to stamp the 

 disease out until the campaign closes. On this subject see 

 the remarks later on in connection with mallein. 



Mange as a cause of inefficiency is very serious ; it is 

 quite true a mangy horse may be worked, but it certainly 

 should not be placed among horses free from the disease. 

 There should be no difficulty in making up a mangy 

 squadron from a regiment, but to prevent the disease 

 spreading is impossible until the horses can be spared 

 for treatment. 



There is nowhere that mange will spread so quickly 

 among military horses as in a railway truck and on board 

 ship. The only possible attempts at isolation that can be 

 made for a regiment affected with mange, engaged with or 

 in contact with the enemy, is that mentioned above ; when 

 the emergency is passed, the majority of the cases will find 



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