18 BIRDS'-NESTING. 



necessary to take one step above another ; keep the 

 eyes familiar with all objects on a level with them, 

 which will make it seem that you are on the ground. 

 Take off the coat, or wear a short coat without arms : 

 this will in a measure protect the lungs from being 

 strained, and from other injuries." 



THE ASCENT OF HIGH TREES. 



How to ascend tall, limbless trees is a problem 

 which circumstances generally help to solve more 

 than any guidance I could give. It is possible to 

 make a ladder out of the trunk by nailing slats 

 across, or by driving in heavy spikes, but this usu- 

 ally makes needful a special trip, and not every case 

 is worth the trouble. A rope-ladder would be a good 

 thing, if, first, you could get it attached ; and if, sec- 

 ondly, you could loosen it, when you were finished. 

 A western man writes that he pursues the following 

 somewhat laborious plan. I have never seen it in 

 operation, but should think it would do well, if your 

 own head was level, your friend's arm stout, and the 

 rope sure not to be chafed in two where it runs over 

 the rough limb. He says : 



"In collecting nests I always have some person 

 along to assist me, and when after hawks' nests carry 

 the following outfit : a stiff bow and half a dozen 



