Fig. 2 



PORTION OF THE BALDWIN RANCH, SIERRA MADRE 

 AND THE SAN GABRIEL RANGE 



8:40 A.M. FEB. 12, 1921, ELEV. ABOVE GROUND 250 FEET. 

 CAMERA FACED NORTHWEST. 



This Photograph was made while the balloon was drifting in a westerly direction 

 just over the Foothill boulevard. The cold air, sliding down the numerous canyons, 

 was made visible in the form of vapor. The Mount Wilson Observatory domes and 

 towers are almost indistinguishable, they are to the east of the highest part of the 

 sky-line. 



14 



