P. H. Groenevelt

•'I PREFACE This book is the second of four Volumes containing the edited lecture notes of the International Course on Land Drainage, which is organized annually in Wageningen, The Netherlands. In the Course an effort is made to cover, as completely as possible and within a period of three...

PREFACE The International Institute for Land Reelamatlori and Improvement was founded in Wageningen in 1956 and charged with the task of collecting and disseminating knowledge in the fields mentioned in its name. During its first few years of existence, the Institute received a steadily...