These experiments, it is true, are not easy; stii.l they are in the power of evert 
thinking hpsbandman. he v/ho accompmshes but one. of however limited application, and 
takes care to retort it faitheum.v, advances the science, and, consequently, the practice 
of aoriculture, and acquires thereby a iiioht to the gratitude of his fellows, and of those 
who come after. to make many such is beyond the power of most individuals, and cannot 
be expected. the first care of all societies formed for the improvement of our scienck 
should be to prepare the forms of such experiments, and to distribute the execution of these 
amongtheir members. 
Von Thaer, Vrinciplea of Agriculture, 
London ;— Printed by WilUam Clowes and Sons, Stamford Street. 
