Frank Balsh.

Few things are more interesting to the young lover of nature than a well stocked and properly cared for aquarium. I trust, therefore, that the following directions for making one, will not be without interest to the readers of Amateur Work.

The tank is constructed of slate and plate glass and is not beyond the powers of the ordinary amateur mechanic.

several two inch pieces. With pliers make a U loop in the centre, 3-16" deep and 1/8" across the opening. Open the magazine in the middle, and cut two slits a trifle over 1/8" long in the fold of the paper through the back, the length of the slits pointing up and down the magazine. These slits must be cut at such points as will be directly opposite the eyelets when the magazine is in the centre of the cover. Open the cover; pass the ends of an ordinary new shoe string down through the eyelets in the front cover of the binder. Pass the U loop of the wires through the slits in the paper- so that they protrude through the back of the magazine when it is closed. Put the string through these loops from the front of the magazine toward the back, and then up through the opposite eyelets in the back cover, pull them tight and tie the two ends together.

Any single number of the magazine, when several are fastened in the binder, can easily be taken out without disturbing the others, by loosening the strings, opening the desired number in the middle, pulling the string up through the slits and slipping the wire from under it. Or in the opposite manner a number may be placed in the binder between others, by pulling the loosened string up through the slits, introducing the wires under the loops of string, and then drawing the string tight.

An appropriate title can be painted on the cover with enamel paint, which dries quickly and will not easily wear off.

First procure some slate free from flaws. The three pieces which will be wanted can be bought from any slate dealer at small cost. A slab 36" long, 18" wide and about 1" thick, will be required for the bottom, and pieces 18" by 12" for the two ends. At 1" from the broad part of the ends, cut a groove 11/8" wide and 1/2" deep. This groove can be cut with a saw as follows : First mark where you wish to cut with an awl, then lay the slate on a table or bench, and screw two strips of hard wood in such a manner that the mark on the slate will come between the strips; their distance apart should be the thickness of the saw. When both lines have been sawed to the right depth, the slate between them can be cut out with an old chisel and hammer. These grooves are for the ends of flip bottom.

How To Make An Aquarium 327

End of Tank.

After you have cut the above grooves, you can cut grooves 1/2" deep and 3/8" wide along both sides of the bottom, and of each end piece, at a distance of 7/8" from the edge, for the plate glass sides. Now bore four holes 1/4" in diameter in each end piece. Two of these holes should be placed about 11/4" from the edge and 3/8" below the groove first made to receive the bottom, and two quite near the top, just inside the groove for the glass.

These holes are for the brass rods which hold the tank together. The rods or bolts should be 1/4"in diameter and about 381/4" long. They should be threaded for about 1" on both ends, and fitted with nuts.

The finished end is shown above.

You can now proceed to put the tank together. First partly fill all the grooves with cement made as follows: - 1 pint of plaster of paris, 1 pint of best litharge, 1 pint of fine white sand, 1/3 pint of powdered resin.

The above when used should be mixed with boiled oil and driers to a stiff putty.

After placing a little of this cement in all the grooves, raise the bottom on blocks of wood, and with the help of a friend, you can easily slip the glass, ends and brass rods into position. And when you have done so, screw up the nuts on the rods with your fingers only. Carefully fill all grooves, empty spaces and cracks with cement and your aquarium is finished.

It will be noted that this aquarium makes no provision for running water, as for most purposes this is not necessary, the oxygen being provided by plant life which may easily be secured from nearby ponds.