1767 in science

The year 1767 in science and technology involved some significant events.

Agriculture

Arthur Young publishes The farmer's letters to the people of England, containing the sentiments of a practical husbandman... to which is added, Sylvæ, or, Occasional tracts on husbandry and rural oeconomics.

June 17 – British Royal Navy Captain Samuel Wallis becomes the first European definitely to visit the island of Tahiti in the Pacific Ocean, during HMS Dolphins second circumnavigation.
July 3 – Pitcairn Island in the Pacific Ocean is sighted from HMS Swallow by 15-year-old Midshipman Robert Pitcairn on a British Royal Navy expeditionary voyage commanded by Philip Carteret, the first definite European sighting.
Autumn – North Carolina woodsman Daniel Boone goes through the Cumberland Gap and reaches Kentucky. He discovers a rich hunting ground, contested by several Native American tribes.

October 12 – Dr William Watson, at the Foundling Hospital in London, conducts an early planned and controlled clinical trial, selecting 32 boys and girls of similar age who have not yet had smallpox. He divides them into three groups in order to test treatments before inoculation for the disease, with one group receiving a mixture of mercury and jalap, another senna glycoside, and the third getting no pre-treatment at all.
November 9 – At the new King's College medical school in New York City, Dr John Jones gives the first lecture by a surgical professor in North America.

January 1 – First annual volume of The Nautical Almanac and Astronomical Ephemeris, produced by British Astronomer Royal Nevil Maskelyne at the Royal Observatory, Greenwich, gives navigators the means to find longitude at sea using tables of lunar distance.
July 3 – First edition of Adresseavisen, Norway's oldest newspaper remaining in print, is published.
Coldstream Bridge on the England/Scotland border, designed by John Smeaton, is opened, one of the first long bridges with a flat deck.
Horace-Bénédict de Saussure constructs the first known Western solar oven.
Joseph Priestley discovers a method of producing carbonated water and publishes The History and Present State of Electricity.