The eggs of so many insects, toads, frogs and other interesting creatures are laid and hatched in water that a close study of pools, brooks and small bodies of water will disclose to the nature student some wonderful stories of animal life. To obtain water specimens for our collection, we shall need a net somewhat similar to the butterfly net described in the previous chapter but with a much stronger frame. One that I have used for several years was made by the village blacksmith. The ring or hoop is of quarter-inch round iron, securely fastened to a stout handle and bent to a shape as shown in the drawing. To this ring is fastened a regular landing net such as fishermen use, with an extra bag of cheesecloth to fit inside to capture insects too small to be held by the meshes of the outside net. For frogs, turtles, and minnows, the single net is all that is necessary. This device is almost strong enough to use as a shovel. It will scoop up a netful of mud without bending. This is important as muddy ditches and sluggish ponds will yield us more specimens than swiftly running brooks. In addition to the net, the collector will require a small pail to hold his trophies. A fisherman’s minnow bucket is excellent for this purpose and the water can easily be freshened and the contents of the pail reached by simply lifting out the inside pail from the water, which will drain out. [Illustration: A heavy net is useful to capture aquarium specimens] To study the animal life under the surface of a clear and shallow lake, a water telescope is a great aid. It is simply a wooden box a foot or so long and open at both ends. The inside should be painted black to prevent cross reflection of light. A square of clear glass should be fitted into one end and puttied tight to keep out the water. To use the water telescope, we simply shove the glass end under water and look into the box. A cloth hood or eye piece to keep out the outside light will make it more effective. The best way to use a water telescope is to lie in the bottom of a boat which is drifting about, and to look through the telescope over the side. As you study the marvellous animal and plant life that passes along under you like a panorama, see to it that in your excitement you do not fall overboard as a boy friend of mine once did. The care of an aquarium is a never ending source of interest to the nature student. If a boy is handy with tools he can build one himself. It is by no means an easy task however to make a satisfactory water-tight box with glass sides, and my advice is not to attempt it. Glass aquaria may be bought so cheaply that it is doubtful if you can save any money by making one at home. If you care to try it, this is the way it is usually done: