tric
Battery," Vol. X, No. 8; "The Induction Coil and How to Make It," Vol.
X, No. 28; "A Simple Electrical Machine," Vol. XI, No. 6: "Simple
Electrical Experiments." Vol. XI, No. 15; "An Electric Bell Outfit,"
Vol. XI, No. 20; "How to Make a Storage Battery," Vol. XI, No. 25;
"Induction Coil Condenser," Vol. XI, No. 47; "Electric Lamps and How to
Work Them," Vol. XII, Nos. 1 and 2; and "Electro-Motors and How to Make
Them," Vol. XII, No. 3.

BIAS EYES.--1. Letters relating to business matters connected with this
paper--such as inquiries relating to advertising rates--are the only
ones answered by mail. They must invariably contain a stamp to pay
postage on such reply. 2. Any reader complying with the rules governing
the exchange department is entitled to its privileges. 3. He is an
Englishman by birth. 4. The principal use of the bell on board ships is
to denote the time of the day or night, which is done by 1, 2, 3, and so
on, up to eight strokes of the bell. The twelve hours between midnight
and noon, or noon and midnight, are divided into three portions of eight
bells each, the duration of time between bells being half an hour.
Consequently, during the course of each twelve hours, the same number of
strokes of the bell will necessarily be used to denote three different
hours or periods of time, as follows:

1 bell at 12.30, 4.30, 8.30.
2 bells " 1.00, 5.00, 9.00.
3 " " 1.30, 5.30, 9.30.
4 " " 2.00, 6.00, 10.00.
5 " " 2.30, 6.30, 10.30.
6 " " 3.00, 7.00, 11.00.
7 " " 3.30, 7.30, 11.30.
8 " " 4.00, 8.00, 12.00.

5. The magnetized needle of a compass has the property of arranging
itself in the meridian, one end always pointing to the north and the
other to the south; yet not exactly, but with a deflection or
declination which varies from time to time in magnitude, and may be
toward the west or the east.

A READER OF GOLDEN DAYS. A very plain and simple method of making
snow-shoes was furnished our readers in Vol. Vll, No. 2. --ROD AND GUN.
In Nos. 15, Vol. I; 23, 24 and 36, Vol. II, will be found articles
devoted to the subject of camping out, which contain all requisite
information regarding that form of recreation. --DODY. The Spanish
sentence is untranslatable, several of the words being beyond the ken of
any one who understands that language. --LAWYER. The gentleman
representing your district in Congress is the proper person to whom
applicat