same strength after several successive operations. The best battery is that of Leclanché. Third.-An intra-uterine electrode of sufficient length to reach all parts of the uterine cavity and which is not affected by acids, as platinum. It must also be provided with a muff to protect the vagina, the best being a celluloid tube. Fourth.-A neutral or insensible electrode, which applied to the abdomen, allows a very intense cur¬ rent to pass without pain, without heat and without fear of burns; the

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... est is the one invented by Dr. Apostoli in 1882. Fifth.-Cords supple enough not to obstruct and resisting enough not be easily broken. The details of the operation are as follows :