CLIMATE AND AGRICULTURE 51 



Peninsula, in Antique, in western Mindoro, and from Ba- 

 tangas to Ilocos Norte. In those parts of the Islands bor- 

 dering on the Pacific Ocean, or not separated from it by 

 mountains, there is very rarely an injuriously dry season. 

 In Manila, on the average, 80 per cent of the year's rain 

 fails in the five months from June to October. 



Altitude and Rainfall. With altitude, that is, height 

 above the sea, the temperature decreases, and the rainfall 

 and the moisture in the air increase. The effect of the 

 rainfall is seen by comparing that at a station of the 

 Forestry Bureau on Mt. Mariveles, at 640 meters alti- 

 tude, with that in Manila. The average rainfall at the 

 foot of the mountain is practically the same as that in 

 Manila. 



Altitude and Agriculture. Because of the altitude, cof- 

 fee has been very profitable in Lipa and Alfonso, but 



