SPECIAL NOTICE.

Persons who have sent numbers of the SCIENTIFIC AMERICAN to this

office, for the purpose of having them bound, will please call or send

for them immediately.

Some of the volumes extend back to 1860, and as we need the room they

occupy, we shall dispose of those not claimed within ten days from

date of this paper.

MUNN & Co., 37 Park Row, New York.

* * * * *