xvni.] 



ELM. 



157 



SPECIFICATION. 

 English Elm Timber. 



A premium price was formerly paid by the 

 Admiralty for timber suitable for keel-pieces ; logs 

 qualified for this purpose were not to exceed 250 feet 

 cube. 



The conditions of the contract were as follows : — 



1. That all the timber should be felled in the 

 winter ; that is, within the ist November and the end 

 of February. 



2. The timber would 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. 

 23,5) ; and in measuring at the yards, the contents of the 

 butt-lengths will not be taken separately, but the lengths 

 for measurement will be regulated by the several stops 

 or joggles. 



