68 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 90 



hiatus from 1902 to 1905, the values for 1901 being 

 derived from the mean of the Max. and Min. with 

 a flat correction of +i?6 applied. The correction 

 to reduce the mean hourly temperature of La 

 Serena to the mean of |(7 h +i4 h + 2i h + 2i h ) at 

 Punta Tortuga was derived from a comparison with 

 the corrected month by means of the latter station 

 for the 5 years 1906 to 1910 common to both series, 

 the following being the corrections applied : 



Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec. 

 "C. -0.3 -0.2 +0.4 +0.8 +0.8 +0.7 +l."o +0.9 +0.7 +0.6 +0.5 -0.1 



The mean hourly temperatures at La Serena, 1902-1910, 

 were derived from the publications of the Observa- 

 torio Nacional de Santiago, Meteorologia de Pro- 

 vinces. La Serena is 15 km northeast of Punta 

 Tortuga and has a relatively continental climate, 

 so that the temperature is higher in summer and 

 lower during the rest of the year than at the coastal 

 station. 

 Precipitation. 



Since the long record at La Serena is available, it has not been 

 considered necessary to print the values for Punta 

 Tortuga. 



COLOMBIA 



BOGOTA 

 Authority. 



Observatorio Nacional de San Bartolonie, Bogota. Continuation 

 of observations of the precipitation published in volume 79, 

 Smithsonian Misc. Coll. 



DEMARARA 



GEORGETOWN 

 Authority. 



The Science and Agriculture Department, Georgetown, Demarara, 

 British Guiana. 

 Pressure. 



Site: The height of the barometer cistern above Mean Sea Level 



was 6 ft. throughout the period. 

 Instruments: Fortin barometer no. 2194 and Kew Pattern No. 

 I540. 



