In the early years of the twentieth century, art history was still in its infancy in Britain. Since relatively little was known about even major painters of the Renaissance, the foundation of art historical knowledge was connoisseurship and specifically a method of attribution developed in the mid-nineteenth century by an Italian historian, Giovanni Morelli. By looking at thousands of works of art and concentrating on minute details (an earlobe, a big toe, fingernails) the connoisseur trains the memory to recognize an artist’s “hand”—and in doing so builds up a coherent picture of his or her artistic personality. [...]
In most of his articles, books, lectures, and broadcasts from the late 1920s onward Clark synthesized formalist and iconographical approaches to the study of art with historical understanding to create a method of inquiry that is uniquely his. He first asks who, what, when, and where the work was made, then questions why and under what circumstances the artist made it—and, crucially, how it was understood by those who first saw it. Clark always relates an artwork to its historical precedents and assesses the degree to which it conforms to or departs from earlier representations of the same subject. [...]
The first thing he did at the National Gallery was to install electric lights—forty years after Bond Street picture dealers began the transition from gas to electricity. Visitors could at last see the collection on fog-bound London days, and the building now stayed open three evenings a week. Clark also rehung the entire collection, taking immense care to select sympathetic wall colors, arrange the pictures by school, and declutter galleries that hadn’t changed much since before the Great War.