UNITED STATES COAST GUARD 



Make a rough copy of the sketch 

 below and label on it the following: 

 Ground wave, Second sky wave, First 

 sky wave, and Ionosphere. 



State the names of the waves in 

 the order in which they appear from 

 left to right on the Loran receiver-in- 

 dicator. 



Name the parts of a sextant indi- in the diagram below : 

 cated by the letters "A" through "N" 



"^K J M I 



