1725 John Senex Large Twin Hemisphere World Antique Map Isaac Newton & Ed Halley

Cartographer : John Senex

  • Title : A Map of The World Corrected from the Observations communicated to the Royal Societys of London and Paris....Sold by Jogn Senex at the Globe....1725
  • Ref #:  27015
  • Size: 43 1/2in x 24 1/4in (1.105m x 615mm)
  • Date : 1725
  • Condition: (A) Very Good Condition

This very large original hand coloured, magnificent and extremely scarce copper-plate engraved antique Twin Hemisphere World Map drawn & engraved by John Senex in 1725 - dated below the title - was published for John Senexs Elephant Folio Atlas
This is the second edition of the large World Map. There were three states in 1711, 1725 and 1750.
Due to their size, these large scale maps are scarce. As they are hard to store and protect damage and loss over time was frequent. It is estimated that there are less than a 10% survival rate for these larger maps. To help improve its longevity, this map has been professionally mounted on archival board.
AMPR records show 10 sales of this map between 1987 and 2017. I can find none currently for sale, online.

General Definitions:
Paper thickness and quality: - Heavy and stable
Paper color : - off white
Age of map color: - Original
Colors used: - Yellow, green, blue, pink
General color appearance: - Authentic
Paper size: - 43 1/2in x 24 1/4in (1.105m x 615mm)
Plate size: - 43in x 23 1/2in (1.090m x 595mm)
Margins: - Min 1/2in (10mm)

Margins: - Bottom right & top left corner professionally restored. Cropped to plate mark
Plate area: - Light creasing, folds as issued
Verso: - Mounted to archival board

This map illustrates the change in the approach to cartography, aiming to highlight the importance of scientific endeavours and discoveries. In the case of this early map John Senex has included theories of tides, sea currents and winds by two of the foremost scientists of the day Sir Isaac Newton and Dr Edmund Halley. This text, surrounding the map is some of the earliest theories of the modern age, to explain the affect of tides, sea currents and winds on the oceans and the world in general.
It is noted by Whitfield... that this map represents the complete ascendancy of scientific taste in the eighteenth century twin hemisphere world map; the maps borders are filled with neither the classical motifs or the scientific motifs, but with scientific texts, long and detailed passages from two of the foremost scientists of the day (Isaac Newton and Edmund Halley) on the Theory of Tides from Newton and An Attempt to assign the Physical cause of the Trade Winds and Monsoons by Halley. This map epitomises the thirst for scientific curiosity that encompassed the world of the 18th century.
Senex has been geographically restrained with many unknowns, such as the debate on California as an Island - shown here as a peninsular. The search for a northern passage to Asia still abounds as does the lack of definitive knowledge of the Pacific NW. But he gives no guesses or half truths only sticking to what is known at the time. Senex remarks in text above California...These parts as yet being undiscovered, us not certain yet whether America joins to the North Eastern Part of Tartary, where hence it is most probable that it was peopled being supposed to be separated if at all but by narrow straits.
He also remarks in text north of Hudson's Bay keeping open the possibility of a NW passage...This way a northwest passage to China has several times been attempted without success.
In the Caribbean Senex notes..The Caribbean Isles in or near the month of August are dreadfully afflicted with furious storms called Hurricanes much as it were particular to them.
He has also been objective in his depiction of the known coastlines of Australia and New Zealand and has followed popular thinking on the connection of New Guinea to Australia. He engraves dire notes regarding New Holland..The soil of Hollandia Nova is barren and desert no fresh but some salt water rivers, no four footed beasts except an Amphibious one as big as a dog with Sea Cows and innumerable quantities of Rats as great as cats; also black swans and Parrots; the natives are black and go naked: the coast is low, foul and rocky, the inland parts high. Here abound oysters, lobsters and crabs and vast numbers of troublesome flies. (Mr. Witsen Phil Trans. No 245)
This is an incredibly important and rare map with many text passages. (Ref: Tooley; Whitfield; M&B)

Sir Isaac Newton PRS ( 1642 – 1727) was an English mathematician, physicist, astronomer, alchemist, theologian, and author (described in his time as a natural philosopher) widely recognised as one of the greatest mathematicians and physicists of all time and among the most influential scientists. He was a key figure in the philosophical revolution known as the Enlightenment. His book Philosophiæ Naturalis Principia Mathematica (Mathematical Principles of Natural Philosophy), first published in 1687, established classical mechanics. Newton also made seminal contributions to optics, and shares credit with German mathematician Gottfried Wilhelm Leibniz for developing infinitesimal calculus.

Dr. Edmund Halley FRS ( 1656 - 1742) was an English astronomer, geophysicist, mathematician, meteorologist, and physicist. He was the second Astronomer Royal in Britain, succeeding John Flamsteed in 1720.
From an observatory he constructed on Saint Helena in 1676–77, Halley catalogued the southern celestial hemisphere and recorded a transit of Mercury across the Sun. He realised that a similar transit of Venus could be used to determine the distances between Earth, Venus, and the Sun. Upon his return to England, he was made a fellow of the Royal Society, and with the help of King Charles II, was granted a masters degree from Oxford.
Halley encouraged and helped fund the publication of Isaac Newtons influential Philosophiæ Naturalis Principia Mathematica (1687). From observations Halley made in September 1682, he used Newtons laws of motion to compute the periodicity of Halleys Comet in his 1705 Synopsis of the Astronomy of Comets. It was named after him upon its predicted return in 1758, which he did not live to see.
Beginning in 1698, Halley made sailing expeditions and made observations on the conditions of terrestrial magnetism. In 1718, he discovered the proper motion of the fixed stars.

Please note all items auctioned are genuine, we do not sell reproductions. A Certificate of Authenticity (COA) can be issued on request.