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Rh perceptible) at all the other places of observations, because they are too remote. It appears, therefore, at least for the present, that there is no reason for admitting among the anomalies other than quantitative differences. Connected with this, it may be very useful, in many cases, to have two or more stations situated within a moderate distance of each other.

It would have been desirable, for example, to have had observations during the September term of 1836, at Augsburg, where the simultaneous observations are now regularly made. We should, in that case, have been able to form a decided opinion on the subject of the movement at 2h 10m, everywhere sensible indeed, but which, at Munich, appears to have been of remarkable magnitude.

the original work the observations made at the different stations in the several terms are printed in tables, and graphical representations of them are contained in six Plates. Much care has been taken to make the plates which are annexed to this translation faithful copies of the originals. It has not been thought necessary to republish the tables.—. Rh