THE PHILIPPINE 
Journal of Science 
Vol. XV OCTOBER, 1919 No. 4 
FORMOSAN TERMITES AND METHODS OF PREVENTING 
THEIR DAMAGE 
By Masamitsu Oshima 
Of the Institute of Science, Government of Formosa 
THIRTEEN PLATES AND FIVE TEXT FIGURES 
CONTENTS 
Introduction. 
Descriptions of the Formosan 
Termites Injurious to Wooden. 
Structures. 
Certain Habits of Coptotermes 
FORMOSANUS SHIRAKI. 
Different castes in the colony. 
The foundation of a new colony. 
Situation of the nest. 
Damage to buildings and other 
materials. 
Principal Food of Coptotermes for- 
MOSANUS SHIRAKI. 
Termite-proof Building Construc- 
tion. 
Defects of the Termite-proof 
Building Construction. 
Tests of the Relative Resistance 
of Native and Exotic Woods. 
Relationship Between the Resist- 
ance and the Physical Prop- 
erties of Timber. 
Relationship Between the Resist- 
ance and the Chemical Prop- 
erties of Timber. 
The Volatile Constituents of 
Cypress Pine. 
The Volatile Constituents of 
Teak. 
The Volatile Constituents of 
Foochow Cedar and Randai 
Cedar. 
Studies on Camphor Green Oil. 
The Relative Effectiveness of 
Preventives. 
Summary. 
INTRODUCTION 
One of the most serious problems in the Tropics with regard 
to man’s industry is to discover a method of preventing the 
damage caused by termites. Because of their subterranean 
habits and insidious methods of attack, termites are very dif- 
ficult to destroy. Moreover, as stated by Dr. K. Escherich: 1 
“Nichts ist vor ihren Kiefern und zerstorenden Sekreten sicher 
167553 
Die Termiten (1909). 
319 
