The main objective of this book is to enable the reader to understand applie econometric studies. The prerequsites for reading the book consist of elementary calcucus through partial differentation, apart from high school algebra and one or two courses in economics.
The author (eho died in 1954, while the original hardback edition was still going through the press) was grateful to colleagues and heads of institutions who generously put photographs at his disposal or permitted him to reproduce illustrations.