People imagine that the progress and prosperity of scientific men depend upon themselves alone; but many a promising career has been arrested by petty jealousy and the expression of ill will on the part of those who are second-rate men of science. On the other hand, truly distinguished scientific men are mostly only too glad to assist earnest, hard-working, and meritorious students. Linnæus found that he was no exception to the rule that appears to determine that a prosperous poor man shall have enemies. He was opposed by a Dr. Rosen on his return from foreign travel, but Linnæus stood his ground. But when his father suggested a voyage into Lapland to collect plants, Linnæus gladly seized the opportunity, and after arrangements had been made, he went to stay awhile at home. Early in 1732 Linnæus left his father’s house, to set out on his arduous undertaking. On his way to Upsala he paid a visit to his former friend and preceptor, Stobæus, at Lund, and studied his collection of minerals, the only branch of natural history with which (he tells us) he was unacquainted. He shortly after proceeded to Upsala, from which place he set out on his journey alone, May 12th, 1732, “being at that time within half a day of twenty-five years of age.” During this journey Linnæus travelled over the greater part of Lapland, skirting the boundaries of Norway, and returned to Upsala by the eastern side of the Bothnian Gulf, having performed a journey of near four thousand English miles, mostly on foot, in five months. He necessarily endured many hardships and vast fatigue, and his life was several times imperilled. Bogs and forests intercepted his way, and food, even of the coarsest description, was occasionally not easily procured; yet, amid all difficulties, his spirit was unflagging, and obstacles only seemed to quicken his zeal. The natural curiosities of the country, the manners of the people, and the general features of the various regions he traversed, all were observed and written down for future use. He collected above a hundred plants, entirely undescribed and unknown before, and upon his return arranged all the flora of Lapland according to his own favourite system, and delivered an account of his journey publicly.