ISENTROPIC ANALYSIS 165 
@= 310° 
JUNE 24,1937 A.M 
Fic. 6. ISENTROPIC CHART CONSTRUCTED FROM AEROLOGICAL OBSERVATIONS OF 
THE EARLY MORNING OF JUNE 24, 1937. (For explanation of construction 
and symbols after Fig. 7.) 
SAULT STE MARIE DETROIT DAYTON NASHVILLE MONTGOMERY PENSACOLA 
a 
a188 10.34 296 
-=-. 
Z Va Ze: LE: POE Ui a a 
Fig. 7. VERTICAL CROSS-SECTION THROUGH THE ATMOSPHERE FROM ST. STE. 
Marigz, MICHIGAN, TO PENSACOLA, FLORIDA, ON JUNE 24, 1937. (The expla- 
nation of symbols is given below.) 
> 
