In securing data with reference to the cost of agiieultural lime it was found 

 that about 36.5 per cent of the delivery cost of ground limestone was due to 

 freight, the range being from 21 to 51 per cent. This is a somewhat larger 

 proportion than in case of hydrated and air-slaked limes where the average was 

 27 per cent, with a range from 18 to 37 per cent. 



With one exception, the degree of fineness to which the various limestones 

 have been ground compai-es favorably with 1923. The product put out by 

 Donald U. Smith in 1923 headed the list, while this season it is second from the 

 last in fineness. If this product, as well as the Ground Shell Lime put out 

 by the Producers Sales Company, were ground finer, its effectiveness as a soil 

 amendment would be considerably increased. The degree of fineness to which 

 the raw lime products have been ground is graphically illustrated below. 



Physical Analysis of Different Limestones. 



Per cent 



Lv wei<»ht ^ ^^ 20 30 40 50 60 70 80 90 100 



uy wvigfjv 1,1,1,1,,,, 



New England 

 Lime Co. 



Grangers Manu- 

 facturing Co- 



Pownal Lime Co. 



Donald U. Smith 



Producers 

 Sales Co. 



^ 



»»oooae«o 



o0o«o *co 

 o»oe» oo»« 



e«**oo«e< 





I I I I I I I I I I I 



10 20 30 40 50 60 70 80 90 100 



] 



Very coarse » caught by ZO-mesh sieve. 



I**'*' "I Coarse ' passing 20, caught "by 40-niesh sieve. 

 Medium = passing 40, caxight by SO-mesh sieve, 

 Fine - passing 60, caught by SO-wesh sieve. 

 Very fin© = passing 80-nesh sieve. 



