William Archibald Cadell

William Archibald Cadell FRS FRSE FGS MWS (1775–1855) was a Scottish industrialist and mathematician, also known as a travel writer.

The eldest son of William Cadell the younger, son of William Cadell, the original managing partner and one of the founders of the Carron Iron Works, by his wife Katherine, daughter of Archibald Inglis of Auchendinny in Midlothian, he was born at his father's residence, Carron Park, near Falkirk, on 27 June 1775.

[1] From 1787 he owned shares in an iron syndicate, transferred from his ironmaster uncle Thomas Edington, but at this point he was a nominee for his father.

[3] A friend of Sir Joseph Banks, Cadell was elected a fellow of the Royal Society on 28 June 1810.

In the Transactions of the Royal Society of Edinburgh Cadell published a paper "On the Lines that divide each Semidiurnal Arc into Six Equal Parts";[5] in the Annals of Philosophy he wrote an "Account of an Arithmetical Machine lately discovered in the College Library of Edinburgh".

On the lines that divide each semidiurnal arc into six equal parts , 1816
The grave of William Archibald Cadell, Warriston Cemetery