He wrote extensively on proportions in music, and on the three different subjective levels on which plainchant could work on the human soul: purging of the impure ; illumination leading to contemplation ; and nourishing perfection through contemplation.

Born in 1855, Dr Leonard Cockayne ( generally recognised as the greatest botanist who has lived, worked, and died in New Zealand ) worked extensively on native plants throughout New Zealand and wrote many notable botanical texts.

A few months after Schwarzschild, Johannes Droste, a student of Hendrik Lorentz, independently gave the same solution for the point mass and wrote more extensively about its properties.

Edmund Husserl ( 1962, 2000 ) wrote extensively about categorial systems as part of his phenomenology.

" Although Jomini also wrote extensively on war, he did not attempt to define war.

Cyril wrote extensively and was a leading protagonist in the Christological controversies of the later 4th and 5th centuries.

" J. Edgar Hoover wrote extensively of " Red Fascism ".

It was here in court that Galen wrote extensively on medical subjects.

In addition to his cosmological writings, Bruno also wrote extensively on the art of memory, a loosely organized group of mnemonic techniques and principles.

Cesare Pugni wrote extensively for the harp as well — his ballet Éoline, ou La Dryade included music written for harp to accompany the ballerina's numerous variations and enhance the atmosphere of the ballet's many fantastical scenes.

Karl Popper wrote with reference to Hegel's theory of history, which he criticized extensively.

Lenin wrote extensively on the matter and famously declared that Imperialism was the highest stage of capitalism.

According to scholar Alan Dundes, who wrote extensively on the topic, the custom originated among Romani Gypsies in Wales ( Welsh Kale Gypsies ) and England ( English Romanichal Gypsies ).

Nineteenth century historians wrote extensively on the United States of America having a distinctively Protestant character in its outlook and founding political philosophy.

He wrote extensively about this in terms of the problem of alienation.

Friedman wrote extensively on the Great Depression, which he termed the Great Contraction, arguing that it had been caused by an ordinary financial shock whose duration and seriousness were greatly increased by the subsequent contraction of the money supply caused by the misguided policies of the directors of the Federal Reserve.

Friedman wrote extensively of his life and experiences, especially in 1998 in his memoirs with his wife Rose, titled Two Lucky People.

The composer Krzysztof Penderecki wrote regularly for the musical saw, including several obbligato parts in his comic opera Ubu Rex, and Canadian composer Robert Minden has written extensively for the musical saw.

He wrote extensively throughout World War I and the interwar period, and supported German hegemony in Europe.

Max Nettlau in the early 1900s and John Zube in the latter part of the century wrote extensively on the concept in articles found on Panarchy. Org.

Hammond wrote his own preterist exposition in 1653, borrowing extensively from Grotius.

Later he wrote extensively on physics and its philosophy, proposing a theory of gravity in Minkowski space as a logically possible alternative Einstein's general theory of relativity.

Pulp fiction author Robert E. Howard wrote extensively about his romanticized version of the Picts, especially in his short stories revolving around the fictional character Bran Mak Morn, but also in many other of his stories.

Empirical research into the question has been associated mainly with the names of Benjamin Lee Whorf, who wrote on the topic in the 1930s, and his mentor Edward Sapir, who did not himself write extensively on the topic.

He wrote extensively about slavery, miscegenation, and his belief that blacks and whites could not live together as free people in one society.

The Marxist literary critic, essayist, and social theorist György Lukács wrote extensively on the aesthetic and political significance of the historical novel.

Hu Shih (, 17 December 1891 – 24 February 1962 ), born Simen () and originally wrote under Hu Hung-hsing () with the courtesy name Xijiang (), was a Chinese philosopher, essayist and diplomat.

Boyes was a novelist and essayist who wrote in support of atheism, anarchy, and free love.

Walter Bagehot ( " Badgett "; 3 February 1826 – 24 March 1877 ) was a British businessman, essayist, and journalist who wrote extensively about literature, government, and economic affairs.

Jean Moréas (; born Ioannis A. Papadiamantopoulos, Ιωάννης Α. Παπαδιαμαντόπουλος ; April 15, 1856 – April 30, 1910 ), was a Greek poet, essayist, and art critic, who wrote mostly in the French language but also in Greek during his youth.

An early 20th century magazine devoted to Westralian poetry named Cygnet was published between 1913 and 1915 ; and the Western Australian essayist Sir Walter Murdoch wrote in 1930, quoting an unnamed poet:

* Marjorie Silcoff – Joan Didion, journalist, essayist, novelist who wrote articles for several papers including Buckley's National Review

Anna Haycraft ( 9 September 1932 – 8 March 2005 ) was a British writer and essayist who wrote under the nom de plume Alice Thomas Ellis.

Cyril Lionel Robert James ( 4 January 1901 – 19 May 1989 ), who sometimes wrote under the pen-name J. R. Johnson, was an Afro-Trinidadian historian, journalist, socialist theorist and essayist.

George Bernard Shaw wrote of one appearance: " I hope I never again have to endure anything more dismally futile ", and the English essayist and caricaturist Max Beerbohm stated that " Leno does not do himself justice collaborating with the public ".

As an essayist, Diego Marani wrote A Trieste con Svevo and Come ho imparato le lingue.

Other members of the family were notable, particularly his great-grandson John Brown, a physician and essayist who wrote, Rab and his Friends.

Sydney Castle Roberts wrote that the English essayist, Max Beerbohm, once interviewed Fry at Wadham College for the English Illustrated Magazine.

In addition to being an important essayist and poet, Tanpınar wrote a number of novels — such as Huzur (" A Mind at Peace ", 1949 ) and Saatleri Ayarlama Enstitüsü (" The Time Regulation Institute ", 1961 )— which dramatize the clash between East and West in modern Turkish culture and society.

Film producer and New York Times essayist Errol Morris wrote in an August 2012 posting, " The conscious awareness of Comic Sans promotes — at least among some people — contempt and summary dismissal.

English essayist and poet Alexander Pope wrote of Bridgeman ’ s creations at Stowe as being the " work to wonder at " ( Batey, et al., 1990, p. 168 ).

As an essayist he wrote extensively on morals and literature, and as a minister he preached often on behalf of philanthropic causes and against war, arguing that " If the Christian religion in all its purity, and in its full force, were suffered to prevail universally, the sword of offensive war must be sheathed for ever, and the din of arms would at last be silenced in perpetual peace " and that " The total abolition of war, and the establishment of perpetual and universal peace, appear to me to be of more consequence than any thing ever achieved, or even attempted, by mere mortal man, since the creation ".

In addition to his work as a publisher and essayist, Fields wrote poetry.

English essayist William Cobbett wrote, " This rushlight cost almost nothing to produce and was believed to give a better light than some poorly dipped candles.

As one critic wrote after his death, " The militant path of this essayist, chronicler and novelist has been governed by one obsession: the quest for the dignity of African peoples.

" That King Shakespeare ," the essayist Thomas Carlyle wrote in 1840, " does not he shine, in crowned sovereignty, over us all, as the noblest, gentlest, yet strongest of rallying signs ; indestructible ".

In 1826 it was the birthplace of Walter Bagehot a businessman, essayist and journalist, who wrote extensively about literature, government, economic affairs and other topics.

Within East Princes Street Gardens there are statues of the explorer David Livingstone, the publisher and Lord Provost Adam Black and the essayist Professor John Wilson, who wrote under the pseudonym Christopher North.

Mary Abigail Dodge ( March 31, 1833-August 17, 1896 ) was an American writer and essayist, she wrote under pseudonym Gail Hamilton.