AGRICULTURE AND MODERN SCIENCE
In working with these problems it has been necessary to device new advanced statistical methods-an example of the application of mathematics to agriculture. The reason that economists have not heretofore been able to express their observations quantitatively is that they have not been able to determine the conditions under which they made their observations. Unlike the natural scientists, they have not been able to take their problems into a laboratory to observe facts undisturbed by varying outside conditions.