Puzzle 4

Tennis surface at the French Open

Female representative of a monarch

City that's the "Pearl of the Adriatic"

Understanding a situation only after looking back

Sedimentary rock that contains skeletal remains

Spring and Autumn period Chinese philosopher

Speared in the ocean

Protect against

Top of the music charts

Autograph

Canadian island where the Butchcart Gardens are

Famous shot, German liquor falls in beer

Jesus had a dozen of them

Revolving shaft on a boat or an early aircraft

Walter Clopton __, the inventor of modern tennis

Initial example of a technological design