National Geographic July 1956

A Stroll to John o’ Groat’s
From Edinburgh to Scotland’s northern tip, a Scotswoman walks through country defined by coal mines and castles.
The Enigma of Bird Anting: A Canadian Naturalist Obtains an Exciting Color Record of the Mysterious Use of Ants by Birds
A Canadian naturalist sets out to discover why some birds ecstatically rub ants over their plumage.
Hunting the Heartbeat of a Whale: A Scientific Expedition Sails a Lonely Mexican Lagoon in Search of Clues to the Mysteries of the Human Heart
Funded by a National Geographic research grant, a cardiologist and colleagues sail a lonely Mexican lagoon in search of clues to the mysteries of the human heart.
Desert Sheikdoms of Arabia’s Pirate Coast: In Trucial Oman’s Principalities, Cradled by Seas of Sand and Salt, Camels, Dates, and Pearls Support a Fiercely Independent People
Ancient ways persist on a point of land cradled by the Persian Gulf and the Gulf of Oman. Camels, dates, and pearls support the fiercely independent people who live there.
Tom Sawyer’s Town
Tourists flock to the riverside town of Hannibal, Missouri, to soak up the world of Tom Sawyer and his creator Mark Twain.