Weed Control by Chemical Methods. This new edition has been

This new edition has been completely revised and new material has been added

who outlined a scheme for the Otari Native Plant Museum in 1927

Full and authoritative guidance on New Zealand gemstones that are available

John Meredith Smith

Illustrated with the fine photographs of Simon Griffiths

Weed Control by Chemical Methods. This new edition has beenL. J. Mathews. A summary of the herbicides and agricultural poison technology of the time, the result of work conducted at the Ruakura Agricultural Research Centre. Now of considerable historical interest for the almost complete absence of any consideration of the environmental effects of toxic chemical use or the dangers to health they posed, many of these recommended poisons, such as DDT, are now banned. An astonishing testament to Government and