ee a ee 
Ree 
Ht) 
Bee 
+ RY 
aeenne, 
aig) 
Se ee ee ee 
i 
Fig. 1 — NORTH POLAR REGION: RESEARCH AND DISCOVERY. An Aerobee 
rocket carrying scientific instruments is launched at Fort Churchill, Canada. 
(Photograph courtesy of U. $. National Committee for the International Geo- 
physical Year.) 
