iv 
CHARACTERISTIC PROPERTIES OF NORTH AMERICAN AIR MASSES, BY 
H. C. WILLETT 
Magsgor FRONTAL AND AIR MASS ZONES OF THE EARTH, BY 
T. BERGERON . 
FURTHER STUDIES OF AMERICAN AIR MASS PROPERTIES, BY 
A. K. SHOWALTER 
ILLUSTRATIONS :— 
Dust Storm (after Parkinson) 
FLooD RAINS (after Minser; Byers) 
FRONTS AND AIRCRAFT ICING (after Minser) . 
BERGERON’S MODEL OF THE WARM-FRONT-TYPE OCCLUSION 
SPRING SHOWERS (after Botts) 
WINTER CYCLONE WITH DUST STORM (after Parkinson) 
Maps AND CROSS SECTIONS OF FRONTS; AIRCRAFT ICING 
(after Minser) 
A SUCCESSION OF PoLAR AIR MASSES; WEATHER MAPS AND 
Cross SECTIONS FoR Nov. 30—Dsc. 2, 1988 (after George 
and Elliot) 
A RossBy DIAGRAM (after Tu) 
SYNOPTIC CHARTS SHOWING WINTER CYCLONES (after Pierce; 
Dorsey) . 5 : . : ; : 
X. ISENTROPIC ANALYSIS 5 3 d F : 
ISENTROPIC ANALYSIS OF A THUNDERSTORM SITUATION, JUNE 22-27, 
1937 (after J. Namias) . 
ANALYSIS OF THE RAINFALL SITUATION OVER THE WESTERN STATES, 
May 6-7, 1938, By MEANS oF AIR MASS AND ISENTROPIC CHARTS 
(after Weightman) 
EXAMPLES OF Upprer-AIR CROSS-SECTIONS SHOWING INTERPRETATIONS 
OF THE TROPOPAUSE, ETC. 
A BIBLIOGRAPHY FOR SYNOPTIC METEOROLOGISTS, BY R. G. STONE 
ADDENDA TO BIBLIOGRAPHY 
GLOSSARY OF ELEMENTARY TERMS USED IN ARTICLES INI TO IX . 
Pages 
- 73-108 
108. 
109-113 
113-135. 
114-115 
116-117 
118-121 
122-124 
125 
126-127 
128 
129-131 
131 
131-135 
136-161 
. 161-167 
168-171 
172-175 
176-226 
227 
228-232 
