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It was in longhand and read: Many thanks for the copy of the paper by Prof. Betaillon of Dijon on the artificial fertilization of the eggs of frogs. I consider it a most important advance in the artificial generation of life.
It went on to say: While Betaillon punctured the eggs with a platinum needle and developed them by means of electric discharges, Loeb in America placed eggs of the sea-urchin in a strong solution of sea water, then in a bath where they were subjected to the action of butyric acid. Finally they were placed in ordinary sea water again, where they developed in the natural manner.
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