Other factors enter into the question of the consideration of this _Flora Danica_ service. It is obvious that the national feeling in artistic and scientific circles was centred on nature and nature study. Jean-Jacques had shown mankind that Dame Nature was capable of being wooed with intense passion. It was not until the late eighteenth century that the beauties of landscape began to be assiduously sought after. Travellers crossed the Alps from one country to another and regarded the frowning mountain, the sombre pass, or the rushing torrent much in the same manner as the unpoetic mariner feared the hurricane. Nature in her majestic loneliness was appalling. The sunny slopes of the Apennines concealed volcanic terrors. The smile of the blue Lake of Como was as treacherous as the dancing waves of the fickle sea itself. Lakes and mountains and mountain gorges were to be avoided; no mortal had conceived the idea of discovering their beauty. They were as fearsome as the Pillars of Hercules to the Latin mariners. [Illustration: CRUET STAND. From _Flora Danica_ service made for Catherine II of Russia. (_At Rosenborg Castle, Copenhagen._)] In England, Thomas Gray, the poet, made a journey into Westmoreland and Cumberland in 1765 to see the Lake Country. His letters are the first note in English literature of man's kinship with nature. It took a century for the modern thought to germinate--"great men are part of the infinite, brothers of the mountain and the sea." As early as 1739, Gray's letters to his mother are filled with passages extolling the grandeur of the crags and precipices of the Alps, at a time when Rousseau had not developed his later method, and Vernet had only commenced to paint the turbulent sea with ecstasy. In Denmark, in 1790, when the first model of the _Flora Danica_ service was turned on the potter's wheel, this inquiring and reflective spirit was in the air, and the general tendency manifestly found a reflex in the great national service being manufactured at the Royal Porcelain Factory. The Russian Government had already entered into co-operation in a small degree in regard to bringing the records of the Russian flora into line with that of Denmark, and Catherine II, as is known, was the patron of the German naturalist Dr. P. S. Pallas, who, in 1784, commenced a _Flora Russica_, which was to eclipse anything yet attempted. This was to be published at the expense of Catherine. At her wish Pallas had in 1768 undertaken a scientific expedition to Siberia, which occupied six years.