188 The Philippine Journal of Science 1915 
are shown in Table IJ. All anopheles caught are included in 
this table, so that the total somewhat exceeds that of Table I, 
which includes only those of which the place of origin was known. 
The great preponderance of females and the large proportion 
of these which had taken blood are so apparent in the table 
that no further analysis is necessary. 
TABLE I—Anopheles and indigenous malaria in the various barrios of San 
Jose Estate, Mindoro. Mosquitoes were caught in houses during 
May, 1914. 



























| Persons exam- 
Mosquitoes caught. ined for mala- 
Houses Dayson rial parasites. 
, Gon ace 
Barrio. aire visits l 
mE)» || ORE A. bar-| A. ma-'| - 
made. | A. fe- | A. ros-|*7". 2 | Num- | Posi- 
: oe biros- | cula- | Total. | aes 
brifer.| sti. ere, tus. | ber. tive. 
= 
Per ct. 
A (aero eR ae Nene EN 6-8 il 166 34 0 0 200 48 | 33.3 | 
Magbando)22222222-=-— 2-3 4 34 14 0 0 48 11} 18.2 | 
iBugsangas oes see 15-20 10 20 110 0 1 131 16} 56.3 
Mixid 0obeeeeen sean 125-150 15 13 122 0 0 185 127 | 37.0 
Inu ban eye nets sues 710-75 12 17 69 1 Oi Sy 15 | 46.7 | 
Dormitory H with } 
Kitchen 22 eee 2o an Wek Bee 17 1 192 0 0 193: |__ Seer 
Totals Lae aa ke lees eee) ee 251 541 1 1 794 217 | 37.3 
ee oe Oe ee a i 
TABLE II.—Anopheles caught in houses during May, 1914, in San Jose Estate, 
Mindoro. 
x | 
Females. Females, 
Species. | Males. | Total. aera 
With | Emp- | Doubt- blood 
blood. ty. ful. - 
| = 
| | Per ct. 
Anophelesebruper sa ak et ee eee oa 232 8 13 1 249 98.5 
Anophclesimossit ieee aren ena eee eee eee eee 452 30 37 58 572 87.1 
Amoniveles OOTbU7OStTUS nea oe ee eee ee 1 0 0 | 0 1} 100.0 
FAMODRELESUINACULALUS eee Hee nae ee ene 1! 0 0 0 1] 100.0 
TS eal PSC ee EE Lue a BE en os a 686 33 | 50 54 | ag23| 89.2 | 
ae : ee, eee (eee es) My oe A 





8 Total exceeds that of Table I, because some are included here the distribution of which 
was doubtful. 
The Iwahig penal colony, Palawan, was visited by Barber in 
June, 1914. This colony occupies a considerable territory, much 
of it comparatively flat and elevated from a few centimeters to 
7 meters above high tide. Like the San Jose Estate, most of 
the colony land has been cleared of jungle within a few years, 
and some parts of it are still being cleared. The whole region 
has long been known as very malarious. 
