of the Old World. 517 



eye, aim should be taken to the right and high ; and 

 to the left and high if the current of air is contrary, 

 and from the left. 



If the wind blows from the right and rear, on 

 aiming direct -at the bull's-eye, the deflection of the 

 bullet will be to the left and high : therefore, in such 

 a case, aim should be taken to the right and low ; or 

 to the left and low, if the current of air comes from 

 the left and rear. 



Correct judgment in making the proper allowances 

 for the effect of various winds upon the flight of the 

 projectile, can only be gained by practice in all 

 kinds of weather, but the above hints may assist the 

 novice. 



The state of the atmosphere considerably affects the 

 range of the bullet. In damp weather, when the 

 atmosphere is dense, its resistance to the flight of 

 the bullet is increased, and consequently greater eleva- 

 tion should be given. In fine clear weather, on the 

 contrary, the resistance is less, and the bullet rises, 

 therefore less elevation is required. Humidity in the 

 atmosphere also affects the range of the bullet in a 

 different manner, as it has a certain influence on 

 ignition of gunpowder, which in damp weather is not 

 so rapid as in fine; therefore, on such days larger 

 charges should be used than in hot summer days. 



The position of t/ie sun is sometimes liable to in- 



