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A Method of Demonstrating the Presence of Uric Acid in the Contractile Vacuoles of some Lower Organisms

Published online by Cambridge University Press:  15 September 2014

A. B. Griffiths
Affiliation:
Member of the Physico-Chemical Society of St Petersburg &c
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Extract

After some years of patient observation and research, I have found, from direct experiment, that at certain times the contractile or pulsating vacuole of the Protozoa performs the function of a true kidney, or, in other words, its secretion is capable of yielding microscopic crystals of uric acid.

Three organisms were used in these experiments, namely:- Amœba, Vorticella, and Paramœcium.

Type
Proceedings 1888-89
Copyright
Copyright © Royal Society of Edinburgh 1889

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References

* The crystals had a splendid green metallic lustre when seen by reflected, and a reddish-purple colour by transmitted light.