Ruskin's first Professorship (1870–78) was perhaps the busiest period even in his busy life. In addition to his work at Oxford, he published at various intervals portions of works on Botany, on Geology, and on Drawing. He started a library of standard literature. He founded a Museum at Sheffield. He engaged in several social experiments; the better sweeping of the streets in St. Giles's and the sale of tea at a fair price were not too trivial for his efforts, nor was the reformation of England, through a Companionship of St. George, too large. He wrote incessantly to the newspapers on topics of the day; and all the while he poured forth, at monthly intervals, that strange and passionate medley of information, controversy, homily, reminiscence, and prophecy which he entitled Fors Clavigera. These tasks were undertaken, not one thing at a time, but often all at the same time. “Head too full, ” he wrote in his diary (February 12, 1872), “ and don't know which to write first.” He solved the problem by writing something of everything every month, or even every day. He describes inFors how at a particular moment he had seven large books going through the press at the same time. “ There is no use, ” he wrote in his diary (January 29, 1872), “ saying tired and ill; always now.” No use; and no wonder.