SEASONING AND IMPEEGNATION OF TIMBER 281 



" Each log and each piece of cut timber will be weighed 

 before and after creosoting by an inspector and the creosote 

 will be paid for according to his record of the quantity 

 injected. All timber which receives less than 7 Ibs. of oil 

 per cubic foot at the first tanking will be retanked, all 

 timber which receives less than 6 Ibs. of oil per cubic foot 

 at the second tanking will be retanked, and all timber 



PIG. 41. Creosoting Tank filled with Poles. 



which receives less than 5 Ibs. of oil per cubic foot is liable 

 to rejection. 



" Samples of creosote may if necessary be taken for 

 analysis. 



" The creosote oil when tested at a temperature of 60 

 Fahr. is to have a specific gravity of not less than 1*045 and 

 to contain not less than 10 per cent, of crude carbolic and 

 other tar acids. 



