ClipArt ETC
"Courtney's Automatic Buoy. A, cylinder, 27 ft. 6 in. long; B, mooring shackle; C, rudder; D, buoy; E, diaphragm; F, ball valves; G, air inlet tubes; H, air (compressed) outlet tube to whistle; I, compressed air inlet to buoy; K, manhole; L, steps; N, whistle." —The Encyclopedia Britannica, 1910

Automatic Buoy

"Courtney's Automatic Buoy. A, cylinder, 27 ft. 6 in. long; B, mooring shackle; C, rudder; D, buoy;…

A boy whistles as he walks by a house of a woman sewing and two children eating bread.

Boy Whistling

A boy whistles as he walks by a house of a woman sewing and two children eating bread.

A Bell buoy that sounds when the sea is rough.

Brown's Bell Buoy

A Bell buoy that sounds when the sea is rough.

"A musical instrument of the flute or whistle class, in which the tone is produced by a stream of air striking against a sharp edge." -Whitney, 1911

Flageolet

"A musical instrument of the flute or whistle class, in which the tone is produced by a stream of air…

A wooden whistle.

Whistle

A wooden whistle.