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 lbs. of oil 
per cubic foot at the first tanking will be retanked, all 
timber which receives less than 6 lbs. of oil per cubic foot 
at the second tanking will be retanked, and all timber 
Fig. 41.— Creosoting Tank filled with Poles. 
which receives less than 5 lbs. 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. 
