This edition’s focus is trivia by the late Washington State researcher and columnist L.M. Boyd:

• It’s a simple physiological fact that more girls than boys grow up knock-kneed.
• If you’re more than 3 feet from a housefly, it can’t see you.
• What’s your age? Multiply it by 3, add 1, multiply that by 3, add your age, knock off the last digit -- and what do you get? Your age.
• When the English first settled in Jamestown, the price of a bride was 120 pounds of tobacco.
• The leader of a wolf pack is always female.

• When old lighthouses beamed constant light, hypnotized birds smacked into them or fluttered around in confusion, then fell onto the rocks and into the sea. Lightkeepers changed to flashing or rotating lights, which helped.

• Why math teachers do well in matrimony is not fully explained, but they usually appear on researchers’ happily-married lists.