350 Philippine Journal of Science 1919 



TABLE VIII. — Scientific and English or local names of woods used in the 

 experiments — Continued. 



INDIAN WOODS. 



No. 



Scientific name. 



Tectona grandis Linn- 

 Unknown 



English or local name. 



Teak. 

 Kayil. 



WOOD FROM JAVA. 



43 Unknown. 



Jungle wood. 



NATIVE WOODS (FROM RIU KIU ISLANDS). 



Podocarpus maerophylla Don j Chaaki or hitotsuba. 



Bischofia javanica Blume J Ikuki or akagi. 



Result of the test at Matsubase* — The ground was infested by 

 Coptotermes formosanus Shiraki. The experiment station was 

 selected in Japan proper as well as in Formosa, in order to 

 test the effect under different conditions, especially the effect 

 by a different species of termite. The blocks were buried on 

 February 11, 1913, and the first inspection was made on Oc- 

 tober 8, 1913, after two hundred forty-nine days. 



Although the duration of the experiment was nearly the 

 same at Tainan as at Matsubase, the results obtained were 

 slightly different. Thus, in the latter locality, kayil, palo maria, 

 and malacmalac were more seriously attacked ; lim, tallow wood, 

 iron bark, grey gum, white mahogany, supa, betis, pagatpat, 

 calantas, malugay, lanete, bansalaguin, lanutan, banuyo, and 

 grey box were less seriously attacked; red narra, guijo, yellow 

 narra, white stringy-bark, acle, amuguis, tucang-calao, tindalo, 

 batitinan, black butt, dungon, mancono, molave, and ipil, which 

 have been attacked by Odontotermes formosanus, were immune. 

 These differences seem to be due to the inactivity of the insect 

 effected by somewhat lower temperature than in Formosa, as 

 well as the existence of a smaller number of individuals. In 

 order to get a more satisfactory result, the blocks that were 

 found free from attack were buried again in the same place and 

 left untouched until July 19, 1915. 



Twenty-one months after first inspection, all the blocks were 

 dug out. The results are shown in Table XI. 



