A pamphlet in Sinhala language, printed in Peliyagoda in Sri Lanka contains recipes for healing food, drinks and washing water, mostly for children’s diseases. Based on Sri Lankan traditional medicines the recipes include various spices, local fruits and plants and also mention Cannabis as an important herbal ingredient.
This is the third edition. The first one was published in 1894.
We could not find any examples of any early editions in Western libraries.
References: Cf. Wasantha S. Weliange, Cannabis and Medicinal Research History of Medical Cannabis in Sri Lanka, January 2019, Conference: Cannabis and Medicinal Research (on-line source: (PDF) Cannabis and Medicinal Research History of Medical Cannabis in Sri Lanka (researchgate.net)).