It is Easy to Insert a Finger in the Tube, but to Get It Out is Almost Impossible
When the glue is dry, ask some one to push a finger into either end. This will be easy enough to do, but to remove the finger is a different matter. The end coils tend to pull out and hold the finger. If the tube is made of tough paper, it will stand considerable pull.—Contributed by Abner B. Shaw, N. Dartmouth, Mass.
¶When mercury is spilled it can be picked up with a medicine dropper.
Homemade Roller Skates
Wheels Fitted into the Ends of a Long Board, to Make a Roller Skate
The long wheel base of the roller skate illustrated makes it quite safe and will prevent falls. The construction of these skates is simple, the frame being made of a board, 2 ft. long, 3 in. wide and 1 in. thick. Holes are mortised through the ends to admit the wheels. A small block, cut out on one side to fit the heel of the shoe, is securely fastened centrally, for width, and just in front of the rear wheel on the board. Two leather straps are fastened to one side of each board, to fasten the skate onto the shoe. The wheels can be turned from hard wood, or small metal wheels may be purchased, as desired. The axle for the wheels consists of a bolt run through a hole bored in the edge of the board centrally with the mortise.—Contributed by Walter Veene, San Diego, Cal.
¶The screw collar of a vise should be oiled at least once a month.