28 Influence on the Production of Mutton 



and if everything is taken into consideration it is even 

 profitable." 



It will be observed from the Table that the profits have 

 been secured in a period varying between three and nine 

 years. With hardly an exception the slag has acted better 

 in England than in Scotland. This is, no doubt, partly due 

 to the fact that the Scottish stations are all at high elevations — 

 600 feet and over — where the length of the growing season 

 is more limited than at low altitudes, and where, consequently, 

 the opportunity of effecting growth is more restricted. No 

 English station except Cransley is more than half as high as 

 the lowest Scottish station which is concerned with this 

 problem. But altitude alone cannot account for the differ- 

 ence, nor do considerations of latitude help much, seeing that 

 the most northerly English station (Cockle Park) is but little 

 further south than some of the Scottish stations. The differ- 

 ence probably lies chiefly in the soil, which in England, on 

 the whole, is better adapted to the growth of White Clover, 

 and consequently to the action of slag, for without leguminous 

 herbage to act upon, and especially white clover, Basic Slag 

 is comparatively inoperative. 



One of the most striking results in these experiments is the 

 persistency in the action of Basic Slag. In the ninth year 

 from the time of application, the residues are very large at 

 Cockle Park and Sevington, and although the other stations 

 have not been carried on so long, they show the same tendency. 

 The matter is summarised in the following tabular statement, 

 the method of estimation being to take the live-weight gain 

 in the last year in excess of that on the unmanured land, 

 and value it at 3d. per lb. : — 



■ 



Cockle Park. 



Sevington. j 



Cransley. 



Hatley. 



Yeldham. 



Saxmundhara. 



Sunderland Hall. 



Boon. ■ 



0 

 0 

 E 



"A 



j Holestane. j 

 Hillridge. 



Boreland. ; 



Glen Dye. 



Ardross. j 



Years since slag 

 applied 



9 



9 



16 6 



8 



6 9 



5 







76 



3 



12 0 



5 



6 



(5 



6 



6 ' 6 \; 



6 



5 



5 



Value per acre 

 by which the 

 slagged land 

 exceeds un- 

 treated land in 

 last year 



8 3. 



7 6 



12 3 



5 6 



7 3 



none i 6 



6 o 



5 6 



9 d 



4 9 



