WALTER J. MALDEN (author of "Tillage and Improvements," "Up- 

 to-date Farm Implement"). Ploughing and Ploughs. The 



Standard Cyclopedia of Agriculture of R. P. Wright, Vol. IX, 

 1910, p. 251. 



"In respect to the merits and value of a plough, the Royal 

 Agricultural Society of England drew up the following points to 

 control their awards in their most recent competition : 



Price 10 



Mechanical properties 20 



Simplicity 10 



Draught relatively to work done .... 20 



Perfection of work in burying vegetation . 25 



Efficiency of skim coulter 5 



100 



XVII. 



Fallowing. The resting of the soil. Soil sickness. Control 

 of soil-bacteria. Soil inoculation. Special bacterial cul- 

 tures used for increasing fertility. Paring and burning. 

 Heat and antiseptics as soil-improvers. 



J. PERCIVAL. On Soil Inoculation. - - Agricultural Bacteriology, 

 London, 1910, p. 201. 



The following is an extract from Mr. Percival's book on Bacte- 

 riology, on a question that has lately roused much attention in 

 Great Britain: 



*' The practical utilization of pure cultures of the " nodule-form- 

 ing " organisms is still in the experimental stage, in spite of the 

 large amount of attention which has been given to the problem. 

 It is quite certain that in certain cases seed inoculation has been very 

 beneficial and remunerative, but exact knowledge of the conditions 

 which ensure an increased yield after such inoculation is still wanting. 

 The evidence seems to point to the conclusion that on much of the 



