WASHINGTON, D.C. - The DC Grotto, one of the oldest chapters of the National Speleological Society, is looking for designs for a new logo. The deadline for submissions is April 1. Submit either a written description, a sketch or a detailed rendering. The design must be able to scale up to a 3-foot-by-4-foot banner or down to a 3-inch-by-4-inch bumper sticker. The design may be color but must reproduce well in black and white.