The first edition of the Systema Naturae, which consisted of fourteen folio pages, was, as has been already related, printed at Leyden in 1735. That which the author reckoned the twelfth, but which was in reality the fifteenth, is the one that ought to be referred to by naturalists, it being the last that was published under his own care and inspection. It appeared at Stockholm in 1766. An edition, greatly enlarged, was published at Leipsic by Gmelin in 1788, and contains numerous species not included in any of the preceding. "No nation," says Dr Stoever, "can produce so complete a repertory of natural history as the above. With infinite labour, exertion, and judgment, all the recent discoveries and observations in all the branches of natural science have been united in it." It is, however, as every one who has had occasion to consult it must be aware, a most injudicious compilation, in which a single species is often described under two, three, or even four different names, and in which no improvement corresponding to the advanced state of the science was made in the grouping of the species or genera. There is an English edition of the same work, translated by William Turton, M.D. London, 1806, 7 vols 8vo. "We may venture to predict," says Sir J. E. Smith, in his account of the Life of Linnaeus, "that as the Systema Naturae was the first performance of the kind, it will certainly be the last; the science of natural history is now become so vast, that no man can ever take the lead again as an universal naturalist." SECTION IX. _Decline and Death of Linnaeus._ Review of the Medical Writings of Linnaeus--His Materia Medical System of Nosology, Theory of Medicine--His last Work, a Continuation of the Mantissa, published in 1771--Declining State of his Health--In 1774, has an Attack of Apoplexy, followed by Prostration of his Intellectual Powers--Another Attack in 1776, from the Effects of which, and Tertian Fever, he never recovers--His Death in 1778--Honours paid to his Memory.