WHOLE VOL. NOTES. SOUTH AMERICA 55 



RIO DE JANEIRO 



Site. 



Up to February 28, 1939, this station was located on the terrace 

 of a tower in the "Ponta do Calabouco" (Lat. 22° 54' S., 

 Long. 43° 10' W., Hb=i8.3 m.). From March i, 1939, to 

 June 10, 1 94 1, the station was on a terrace of another build- 

 ing near the former one (same coordinates; Hb = 44.70 m.). 



Pressure. 



To correct the pressure to sea level, 2.4 mb. was added from 

 January 193 1 through February 1939; then 5.8 mb. was 

 added from March 1939 through December 1940. 



SALVADOR 



Site. 



Up to December 31, 1932, this station was operating in the suburb 

 of Ondina in the southern part of the city, very close to the 

 sea (Lat. 13° 00' S., Long. 38° 31' W., Hb = 46.57 m.). 

 From January i, 1933, to September 30, 1938, it was situated 

 in the central part of the city (Praca de Barbalho, Lat. 

 12° 58' S., Long. 38° 32' W., Hb= 64.06 m.). On October i, 

 1938, the station commenced to operate in the place where 

 it is now situated, on the terrace on the building of the 

 Airport of Ribeira in the northwestern part of the city, on 

 one of the beaches of Todos os Santos (Hb = 8.52 m.). To 

 correct to sea level, 5.3 mb., 7.5 mb., and 0.9 mb. respec- 

 tively were added for the intervals given above. 



SAO PAULO 



Site. 



The data up to December 1934 were obtained at the Observatory 

 of Av. Paulista (Lat. 23° 34' S., Long. 46° 41' W., Hb = 8o8 

 m.). From January 1935 to December 1940 the observations 

 were made at the Astronomical Observatory (Lat. 23° 39' S., 

 Long. 46° 32' W., Hb=796 m.). 



BRITISH GUIANA 

 GEORGETOWN 



Authority. 



Director, Department of Agriculture, British Guiana. 

 3 



