Abstract
THE monthly parts of the Sitzungsberithte of the Vienna Academy of Sciences which appeared last year show that there is no falling off in the research work carried out at the Austrian universities in the fields of mathematics and natural philosophy. Prof. Lecher, of Prague, has verified Ohm's law by showing that there is no difference in the resistance of a silver or platinum wire when a small or a large electric current passes through it, provided its temperature is the same in both, cases. Assuming that the current is carried by one type of: free electron, he deduces a velocity of propagation of electricity in ordinary cases of the order of a. few centimetres per second.
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