reported in the Sydney Daily Telegraph: — Products Some of Kempthorne Prosser's most well known material: KP/Kempthorne Prosser's products were popular in New Zealand. K.P. Lifesalt was a drink offered in the late 1920s until at least the 1940s when Andrew's Liver Salts gained the market. KP also produced flavouring essences in up to eight different flavours. KP Rockland and Westfield Manures were celebrated manures produced at the Burnside and Westfield Works in Dunedin and Auckland. From 1881 until about 1920 Kempthorne Prosser held a monopoly in the fertiliser division in the country until competition existed. KP supplied major chemists and hospitals throughout New Zealand. Publications by Kempthorne Prosser Late 1920s - Profitable Fertilising in New Zealand (1st edition) Early 1930s - KP Fertiliser Handbook for New Zealand (2nd edition) 1960s - KP Fertiliser Handbook (3rd edition) A 24-page history published by the company in 1954 provides a glimpse of the company’s first 75 years. References External links Fertilizer companies of New Zealand History of Dunedin Chemical companies established in 1869 New Zealand companies established in 1869 Defunct manufacturing companies of New Zealand