Page:A History of Hindu Chemistry Vol 1.djvu/137

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cxix

and Pautana (the tract of country about Mathuro). Of non-poisonous leeches, those which are stronger and have large bodies, can drink blood rapidly and eat much, are especially free from poison.

and the back green: they are

Leeches which are produced in dirty water and from the decomposition of poisonous fishes, insects, frogs, urine and fæces are poisonous. Those produced in pure water and from the decomposition of the different varieties of the Nelumbium Speciosum and the Nymphæa lotus and of Saivāla (Blyxa octandra) are non-poisonous.

The varieties of Nymphæa mentioned here are padma, utpala, kumuda, nalina, kuvalaya, saugandhika and pundarka.

On this subject there is the following verse:—Non-poisonous leeches go about in the field and fragrant water. They do not live in confined

bitter but they will be worse in bad water quite stagnant in which are many small tadpole frogs: nevertheless, they are good in good and excellent water,