I 



OF THE ANGLO-SAXON CONQUEST OF ENGLAND. 685 



lines of evidence and argument is as obvious wlien we have to con- 

 trovert, as when we have to establish a conclusion. If you have to 

 attack or resist a force comprising both cavalry and infantry, you 

 must have both cavalry and infantry of your own ; otherwise some 

 day or other, either in a country intersected by woods, or in some 

 open plain furrowed into deep undulations, one of the two arms in 

 which you are deficient will take you in one or both flanks, and 

 you will be surprised, broken, and routed. 



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