Science has to lament the death of M. Leopold de Buch, the eminent Geologist, who died at Berlin on the 4th March. M. de Humboldt in writing to M.

Arago on this subject says.

"My dear and excellent friend, --I have most melancholy news to impart to you. M. de Buch has been taken away from us this day--an affliction so sudden and so sad.

There are few examples of such a devotion to Science, so active, and so advantageous, as the life of M. De Buch presents.

The Reform of Geology, and the happy changes which that Science has sustained, are mainly owing to his exertions.

He possessed a noble and enthusiastic soul --ardent in temperature, as are most men who have contributed eminently to the enlightenment and improvement of their fellow man--he has left a lumunious trace of usefulness and good to perpetuate his memory.

Gay Lussac and thyself have both known him: with myself, Buch was warmly attached to you both--by bonds of peace and love--heart and soul."