MEMORANDUM ON CLASSIFICATION OF STANDING TIMBER. 79 



Formerly the gauge was made to one size only, and while 

 suitable for use in the measurement of woods where there was 

 a fair proportion of sleeper trees, was not adapted for use in 

 woods where the timber was mainly spars and props. Accord- 

 ingly Mr Gilbert Brown and the writer of these notes, who have 

 been responsible for introducing it to the notice of a large 

 number of proprietors in the North of Scotland, have recom- 

 mended the use, when woods of the latter type were being 

 dealt with, of smaller but similar gauges of the following 

 dimensions : — ' 



Gauge No. 2 {see Plate). 



4^ inches. 



Gauge No. 3 

 (which is used for a smaller class of timber than No. 2). 

 i^\) a b - 4 inches. 



{2) a c = 5 „ 



{Z) a d = 6h „ 



{4) a e = 81- ,, 



When using the smaller gauges, trees with a diameter less 

 than a b would again be marked with one dot, trees with a 

 diameter less than a c with two dots, and so on, as indicated in 

 the scheme for classifying the larger timber with Gauge No. i. 

 For the purposes of advertisement, trees classified with Gauge 

 No, 2 might appear in the particulars of the sale under the 

 headings of the different species, as — 



(i) 3-inch pit-wood No. of trees. 



(2) 4-inch „ „ 



(3) 5-inch ;, „ 



(4) 6-inch ,, and spars ,, 



(5) timbers ,, 

 And when Gauge No. 3 is employed, as — 



(i) 2 |-inch pit-wood No. of trees. 



(2) 3-inch „ „ ■ 



(3) 4-inch „ „ 



(4) 5-i"ch „ „ 



(5) 6-inch „ and spars „ 

 in ascending scale in each case. 



