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Charles Peter Thunberg was born in Sweden in 1743, and died at Upsal in 1828. In 1770, after finishing his education, he went to France, and from thence to Holland, where, on being recommended by Burmann, he was engaged by the Dutch East India Company to go to Japan in a medical capacity. After remaining some time at the Cape, he proceeded to his destination, and afterwards to Java and Ceylon, whence he returned first to England, and subsequently to Germany. His travels occupied nine years. Fourteen months after the death of Linnæus, he was appointed director of the botanic garden of Upsal during the absence of the son of that renowned professor. He acquired[Pg 259] the honours usually bestowed on fortunate cultivators of science, and finally succeeded the younger Linnæus.
Besides these celebrated individuals, who explored the most remote regions of the globe, many of the students trained in the garden and lecture-rooms of Upsal traversed various parts of Europe. Koehler visited Italy; Alstroemer the same country, as well as France and Spain; Von Troil made a voyage to Iceland; Fabricius travelled in Norway, England, and France; and Solander examined the Lapland Alps. In short, an astonishing impulse was given to the study of natural history in general, and of botany in particular. Facts and observations were accumulated to such a degree, that had Linnæus lived ten years longer he would have been utterly unable to continue the legislator of the science in all its departments.
To him, however, remains the glory of having been the only individual who described all the minerals, plants, and animals, known in his time. Before him no one had attempted the task.[Pg 260]
Publication of the Philosophia Botanica—General Account of that Work—Linnæus engaged in arranging the Collections of the Queen and Count Tessin—The Species Plantarum—Sir J. E. Smith's Remarks on it—Quotation from the Preface, with Remarks—Linnæus publishes improved Editions of his Works—Obtains Prizes for Essays from the Royal Societies of Stockholm and Petersburg—Is elected a Member of the Academy of Sciences of Paris—Receives Plants and Seeds from various Quarters—Purchases two Estates—Delivers private Lectures at his Museum—His Emoluments—His Son appointed his Assistant and Successor—He receives Letters of Nobility; and is rewarded for his Discovery of the Art of producing Pearls—His domestic Troubles, Infirmities, and sincere Reconciliation to his old Antagonist Rosen, who attends him in his Sickness.
It has been already mentioned that Linnæus, when residing in Holland, printed a short treatise containing his theoretical views respecting the classification of plants. This work, to which he gave the title of Fundamenta Botanica, consisted of a series of aphorisms or propositions, which his friends afterwards repeatedly urged him to demonstrate at length, so as to constitute them into a body of doctrine which might be considered as the code of botanical science. Accordingly, in 1751, he published the Philosophia Botanica, one of the most remarkable performances that any age or country can boast of. It consists of 12 chapters, 52 sections, 365[Pg 261] aphorisms, in imitation of the different divisions of the year,—a puerile conceit, with which his enemies have not failed to taunt the illustrious author. Had there been a hundred days more he might have found aphorisms for them all; and any one conversant with zoology might engage to construct a classification of animals on the very same principle. Since he was so attached to numerical analogies, it is surprising that he did not form 12 classes of plants, 52 orders, 365 families, and a number of genera corresponding to that of the hours in a year. On such an arrangement might, with due calculation, have been founded a system of botany as perfect as any that had appeared before his time. The distribution of his materials, however is the only childish part of the book; for in other respects it must be acknowledged to be a model of perspicuity, precision, and force.
The first chapter gives an account of the principal writers on botany; the second, of systems of classification; the third, of the roots, stems, and leaves of plants; the fourth, of the parts of fructification. In the remaining chapters are discussed the doctrine of sexes, the characters of the classes and subdivisions, the names of the genera, the specific differences, varieties, synonymes, the descriptions of the species, and the virtues or uses. At the end of the volume are several curious fragments, containing directions to students of botany, the method of forming herbariums, a plan to be followed by naturalists in travelling, and other matters of a like nature.
"The Genera Plantarum," says Linnæus in his private memoirs, "the most important of all the[Pg 262] works on botany, and which was intended for facilitating the study of that science, being completed, he laboured at the species. He was at this period the only person who had at his disposal the materials necessary for the composition of that great work. His herbarium was immense, and no one had seen so great a number of gardens and collections. With the assistance of this methodical book, any person can make out the plants already described by authors, and those which have become known only of late, or which are entirely new. He laboured, two successive years at the species; and it was at this period that he felt the first attacks of calculus, the usual consequence of too sedentary a life, and of long-continued pressure on the lower abdominal viscera."
In 1753, being again called to Drottningholm, he was desired to describe the natural productions contained in the museums of his majesty and the Count Tessin. The former rewarded him with a valuable ring, the latter with a gold watch and a copy of Rumphius's splendid Herbarium Amboinense. But what delighted him most was the assurance given by the queen, that should his son evince a liking to natural history, she would send him to travel over Europe at her own expense.
This year appeared the Species Plantarum, which was published at Stockholm in two volumes, and contained the characters of 7000 species. Haller denominates this production "maximum opus et æternum." It is unnecessary here to offer any detailed account of it, as it is well known to every botanist. Sir James E. Smith, in his Life of Linnæus, observes, that "it is ever memorable for the[Pg 263] adaptation of specific, or, as they were at first called, trivial names. This contrivance, which he first used in his Pan Suecicus, a dissertation printed in 1749, extended to minerals in his Museum Tessinianum, and subsequently to all the departments of zoology, has perhaps rendered his works more popular than any one of their merits besides. His specific differences were intended to be used as names; but their unavoidable length rendering this impracticable, and the application of numeral figures to each species, in Haller's manner, being still more burthensome to the memory, all natural science would have been ruined for want of a common language, were it not for this simple and happy invention. By this means we speak of every natural production in two words, its generic and its specific name. No ambiguous comparisons or references are wanted, no presupposition of any thing already known. The distinguishing character of each object is mostly stamped in its name; and if this perfection of the art cannot always be attained, the memory is assisted, often very ingeniously, with collateral information, indicating the colour, the habit, or the qualities of the object of our examination. The philosophical tribe of naturalists, for so they are called by themselves and their admirers, do not therefore depreciate Linnæus when they call him a nomenclator. On the contrary, they celebrate him for a merit which no other person has attained, and without which their own discoveries and remarks, of whatever value, would not be understood."
