710 



PEOCEEDINGS OF THE THIRD ENTOMOLOGICAL MEETING 



Timborite. 



Two pieces of Bombax wood were given seven coatings in shade on 

 three days (6tli-8th April) and buried on 10th April 1916, and were 

 found untouched up to 1st August 1918, a period of 28 months. 



Two pieces of deal were given two coatings (on 6th and 8th April) 

 and buried on 10th April 1916, and of these one was found eaten out 

 on 28th February 1917, after an interval of 11 months. The other piece 

 was wholly eaten by 1st August 1918, a period of 28 months. 



Two more pieces of Bombax wood, two of deodar, two of mango 

 and two of sissu were given four coatings in March 1917 and buried 

 on 20th March 1917. By 1st August 1918, one of the pieces of sissu 

 had failed, after 16 months. The rest were reburied. 



Lead Chro77iate. 

 Two pieces of wood treated with Lead Chromate were buried on 29tli 

 November 1910, and were found shghtly attacked by 14th June 1911, 

 within a period of seven months. 



Siderosthen. 



Orr^s Wood Preservative. 

 Three pieces of deal, three of mango, three of teak and three of deodar 

 were painted with four coatings of Orr's Wood Preservative, which is a 



