:By standing in front of a mirror and holding a ruler up to my own ( formidable, but not extraordinarily large ) proboscis, I found that I could estimate it as a rectangular prism measuring 1 by 2 by 5 cm . ( It's actually a good bit bigger, even with the cartilaginous bit compressed, but I'm accounting for the hollow in the rigid bony part . ) That's a volume of about 10 cubic centimeters.
