xu,¢c,6 Brown: Mount Banahao’s Podocarpus Imbricatus 321 
means of a planimeter. An examination of Table II would indi- 
cate that the humidity at the top of Mount Banahao should be 
favorable for plant growth. 
TABLE II.—Kelative humidity for periods of four weeks in forest at the 
top of Mount Banahao, Luzon, P. I. Altitude, about 2,100 meters. 
— a 
an Average daily— 
Four weeks ending— pie, accesses is” Ort Ya (emma ES 
ing mum, | mum. Sicac a 
mum. mum, 
ee i 2 eee ee ee ed 93.0 81.5 89.8 91.1 | 88.4 
“MGR, BONING eae eee es 97.5 85.0 90.1 91.7] 88.8 
an, CONG ssi ee ee re 94.0 71.0 90. 4 91.7} 87.2 
Bek: $851910 ee ee a 99.0 92.0 91.2 93.6 | 87.8 
Mad, Se 196 2S Becher cei ree 100.0 61.0 93.0 96.9! 86.3 
pi 1Oe OIG ee re ee 100.0 62.0 94.9 97.9} 91.0 
Mas TiEIS16 | 2s es oe Pa EAE NS I eS eho E Tae 97.0 85.5 92.3 94.9) 89.6 
woes 3451016 =] soe ee ee 97.0 87.0 98.1 95.0, 91.0 
ao te 1ele 3 re eee 99.5 86,0 93.6 96.0 | 91.7 
NN IG ee sic ce as ee 100.0 71.0 91.9 94.7 | 88.0 
ent, 6 106 «255-2530. 5— ss pce eee ee 99.0 79.0 92.5 98.9] 89.0 
Oa dts Si aes eoiet ore eae 100.0| 88.5) %5.4| 96.8} 93,8 | 
eG A BORG ices oe CP PDN ee ieee ee AEP 100.0 91.5 96.8 98.2, 90.7 
Fo Eas ea DOS Dee GE A Gd 3 ee 92.7 $4.8 | 89.4 
In Table III the temperature record is presented in the form 
of maxima, minima, mean, daily maxima, and average daily 
minimum for periods of four weeks from October, 1915, to No- 
vember, 1916. The variations in the mean temperature for the 
different periods of four weeks are slight, the lowest mean for 
such a period being 13.2° and the highest, 15.8°. The average 
daily variation is also slight, the difference between the average 
maximum and the average minimum for the year being only 2.2°. 
There are, however, occasions when the temperature varies con- 
siderably from the mean. The highest temperature recorded 
during the year was 23.6° and the lowest, 5°; so that the dif- 
ference between the maximum and minimum for the year is 
18.6°. This variation is small as compared with the variations 
in temperate regions: The temperature is constantly too low 
to be favorable for rapid growth at any time. : 
