X CONTENTS 



Page 



North America 604 



San Jose, Costa Rica, Central America, rainfall, 1901- 



1921 604 



United States, percentage of normal rainfall by States 



and sections 605 



North Atlantic 614 



St. George (Prospect), Bermuda, West Indies, pressure, 



1922-1930 614 



South America 615 



Alto da Scrra, Brazil, rainfall, 1870-1930 615 



Quixeramobim, Brazil, pressure, 191 1-1930 616 



Rio de Janeiro, Brazil, pressure, 1911-1930 616 



Turi-Assu, Brazil, pressure, 1911-1930 617 



South Pacific 618 



Dunedin, New Zealand, rainfall, 1913-1930 618 



Appendix A. Lake and River Levels 619 



Lake levels 619 



Maximum and minimum heights of Lake Victoria, Africa, 



1896-1944 — 619 



Monthly means of water levels of Lake Michigan at 



Milwaukee, Wis 621 



Maximum and minimum heights of Lake Titicaca, 



Bolivia, 1916-1943 623 



River levels 624 



Maximum and minimum heights of the Nile River, 



Egypt, 1918-1943 624 



Mean river heights of Rio de la Plata, Argentina, 1900- 



1940 624 



Appendix B. Sunspot Numbers 625 



ABBREVIATIONS AND SYMBOLS 



In the tables and notes the following abbreviations have been used : 

 C. = Centigrade. 

 F. ^ Fahrenheit, 

 ft. = foot, feet. 



* z= hour of observation, as 8", 14*. 

 H =: height of ground above mean sea level. 

 Hb = height of barometer above mean sea level. 

 Ht = height of thermometer above mean sea level, 

 ht ^ height of thermometer above ground, 

 hr = height of rain gage above ground, 

 in. = inch, inches. 

 Lat. = latitude. 

 Long. = longitude. 



" ^ minute, minutes. 

 m. = meter, meters, 

 mm. = millimeter, millimeters, 

 mb. = millibar, millibars. 

 T = trace of precipitation, or amount too small to measure. 



