7 6 



DYNAMIC METEOROLOGY AND HYDROGRAPHY. 



55. Remarks on Virtual-Temperature Diagrams. When many calculations 

 are to be performed, much time may be saved if convenient blanks be prepared for 

 the drawing of the virtual-temperature diagrams. The use of tables 7 m or 8 m 

 may be completely dispensed with if the horizontal lines on these blanks be pro- 

 vided with divisions showing the distance from the curve of true to that of 



Table L. Virtual-temperature divisions on lines 

 representing' standard isobar ic surfaces. ( Verti- 

 cal columns in the table correspond to horizontal 

 lines on the virtual-temperature diagram.) 



Table M. Virtual-temperature divisions on lines 

 representing standard levels. ( Vertical columns 

 in the table correspond to horizontal lines on the 

 virtual-temperature diagram. ) 



