CORRE SPONDE NTS who expect to receive answers to their letters must in all cases sign their names. We have a right to know those who seek in SPECIAL NO FE This column is designed for the general interest and in struction of our readers not for gratuitous re plies to questions of a of' Business and Personal.' EXTENSION NOTICES, scientific american, 1867-01-26

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CORRE SPONDE NTS who expect to receive answers to their letters must in all cases sign their names. We have a right to know those who seek in SPECIAL NO FE This column is designed for the general interest and in struction of our readers not for gratuitous re plies to questions of a of' Business and Personal.' EXTENSION NOTICES, scientific american, 1867-01-26

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