242 



SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 51 



The isobars in fig. 52 are constructed according to the following 

 table: 



FIG. 52 



The maximum value of the angle e between the gradient and the 

 radius is determined by equation (16). Assuming r = 9°, U = 16.7" 1 , 

 k = 0.00010, we shall have e about 5 and consequently the angle 

 of inclination (p varies from 43 at the anterior edge to 53 at the 

 posterior edge of the progressing cyclone. 



