222 TIMBER AND TIMBER TREES. [CHAP. 



SPECIFICATION. 

 ENGLISH ELM TIMBER. 



A premium price is paid for timber suitable for keel- 

 pieces ; logs qualified for this purpose are not to exceed 

 250 feet cube. 



The conditions of the contract are 



1. That all the timber shall be felled in the winter ; 

 that is, within the 1st November and the end of 

 February. 



2. The timber will not be required to be delivered of 

 an octagonal form, but must be so hewn or squared as 

 that at each of the measuring places no surface or square 

 shall be less than one-fourth of the diameter of the piece 

 where the measurement is to be taken (Fig. 26b) ; and in 

 measuring at the yards, the contents of the butt-lengths 

 will not be taken separately, but the lengths for measure- 

 ment will be regulated by the several stops or joggles. 



