WHOLE \'0L. 



NOTKS. NORTH PACIFIC 10? 



hisfntinciits: The following are the Imromcters used and the m- 

 dex error corrections applied : 



1903 to T907. H. J. Green +0.10 tnni. 



1908 to 191 1 March 10. Tonnelot +0.25 mm. 



191 1 March 1 1 to 1922. Tonnelot -0.65 mm. 



Hours: The values are the means of ohservations at >^\ 6'\ lo''. 



I4'\ i8h. 22''. 

 Notes: All values have been corrected to normal gravity (Lat. 

 45°) hv ajiplyine: a correction of - 1.77 mm. 

 Temperature. 



Site and Instninicnts: H. J. ( ireen thermometers were in use 

 throughout the period. 

 1903 to 1910 September. Thermometers exposed in an 

 American type shelter, at a height of 2.30 m. above 

 the ground. 

 1910 October to 1922. Thermometers exposed in a tro])ical 

 shelter, with single screen and double roof (the 

 lower made of wood and upi)er made of ni])a) ; the 

 thermometers in this shelter were 4.25 m. above 

 the ground. 

 Hours: The values are the means of observations at 2'\ O'', 10'', 

 I4'\ i8'\ 22''. 

 Precipitation. 



Site and Instruments: A U. S. Standard rain gage was in use 

 throughout the period. 

 1903 to 1908 Aj^ril 20. Rain gage exposed on the roof of 

 the station house, at a height of 3.8 m. above the 

 ground. 

 1908 Ai)ril 21 to 1910 October. Exjiosed on level ground 

 nearer to the sea, at a height of 0.80 m. above the 

 ground. 



1910 October to 191 1 March. Kxi)osm-e less open than the 



preceding ones. 



1911 March to 1922. Exi)oscd on a roof, in a more open 



position than before, at a height of 3.8 m. above 

 the ground. 



MANILA 

 Authority. 



Weather Bureau, Department of Agriculture an\l Natural Re- 

 sources, Manila. Philippine Islands. 



