His zeal, talents, and widespread renown soon produced the desired effect, and in a few years the garden at Upsala ranked equal, if not superior, to similar institutions in Europe. Contributions to its stores continually poured in from all quarters, and the most celebrated botanists vied with each other in presenting the treasures of every region and climate of the globe to its distinguished superintendent. Six years after the establishment of this garden, the new professor published its description. The numbers of the foreign species of plants in it at that time, amounted to one thousand one hundred. He was filled with delight when he beheld these fruits of his labours. As a teacher and lecturer, Linnæus distinguished himself in a particular manner. His old students always spoke well of his teaching, and he trained some of the most distinguished botanists in Europe. The names of Kalm, Thunberg, Sparrman, Solander, and Fabricius, for instance, are well known in the scientific world; and there is perhaps nothing more truly honourable to the memory of their great master, than the fact that he was the founder of such a school of able and enterprising men. Linnæus impressed upon his students, and took care to remember in his own writings, that it was absolutely necessary to be exact in botanical descriptions—that the genus should be properly named, and that it should represent an idea into which certain species could enter. To the poor, and even to the rich, foreign students who resided at Upsala entirely on his account, he was most generous, refusing the perquisites which he should have received for his lectures. To the former he remitted the money from purely benevolent motives, while he declined it from the others, that he might convince them how truly proud he was of his science, so that he would fain make it free of cost to those who sought after it. One of them having repeatedly urged Linnæus to accept a Swedish bank-note as an acknowledgment for the pains he had taken to teach him, he said, “Tell me candidly, are you rich, and can you afford it? Can you well spare this money on your return to Germany? If you can, then give the note to my wife; but, if you be poor, so help me Heaven, I will take not a single farthing from you.” “You are the only Swiss that visits me, and I feel a pleasure in telling you all I know, gratis,” was his answer to another, who importuned him in the same manner. It was evident that he was never so much at home, so entirely happy, as in his garden, and while searching into the secrets and hidden properties and workings of nature. Hence he reckoned it among the choicest favours vouchsafed him by Providence, that he had been “inspired with an inclination for science so passionate, as to become the source of highest delight to him.” His diligence and minute observation were continually adding to his knowledge, and imparting some fresh light in the study he loved.