| 1 | 3 | 5 | 7 | 9 |
| 4 | 6 | 8 | ||
| 2 | 10 | |||
The Method of Folding the Paper is Indicated Clearly in the Diagram, Which are to be Followed in the Order of Their Numbering, the Tail being Inserted Separately
An interesting bit of paper construction is a small monoplane made from a 7-in. square of paper, folded as indicated in the diagram and provided with a paper tail. This little monoplane can be steered by adjusting the tail, and even made to loop the loop in the varying air currents. For the boy who enjoys experimenting with such a model this little construction offers much instruction and entertainment, and the grown-up who still has an interest in such things will also find it a worth-while job.
This Model Monoplane is Made of a Sheet of Paper, Seven Inches Square, and can be Steered by Bending or Twisting the Tail
To make this model, fold a square of medium-weight paper on the dotted lines, as indicated in Fig. 1 in the [diagram]. Then unfold the sheet and refold it as in Fig. 2. Then bring the folded corners A and B into position, as shown at A and B in Fig. 3. Fold the corners C and D upward to the position C and D in Fig. 4. Fold corners G and H to the corresponding letters in Fig. 5. Fold points J and K to the corresponding letters in Fig. 6. Raise the points J and K, Fig. 6, and fold them in so that the corners which were below them in Fig. 6 now come above them, as at L and M in Fig. 7. Fold the corner N back along the line OP, Fig. 8, so that the shape of the main portion of the model is as shown in Fig. 9, at OP. Make the tail 1¹⁄₂ by 14 in. long, as shown in Fig. 10, and paste it into position. This completes the model, which can be steered by bending or twisting the tail.—George H. Stipp.
Roll-Film Spools Useful in Economizing Pencils
Now that everyone should economize, short lead pencils should receive attention. A convenient lengthener is easily made by removing the metal ends from used film-camera spools, the 3¹⁄₄-in. length being the best size to use. The pencil is cut to fit the unslotted end of the spindle tightly. An eraser may be fitted in the slotted end. In a school quite a saving was made by collecting the short pencils of the pupils and having them thus fitted up in the workshop.—A. T. Moss, Napa, Calif.