Aristotle's Ideas respecting the Soul—His Views of Anatomy and Physiology—Introduction to his History of Animals, consisting of Aphorisms or general Principles—His Division of Animals; their external Parts; their Arrangement into Families; their internal Organs; Generation, &c. 55

Introductory Remarks—Notice respecting Pliny by Suetonius—Account of his Habits, as given by his Nephew, Pliny the Younger—Various Particulars of his Life—His Death occasioned by an Eruption of Vesuvius—Buffon's Opinion of the Writings of Pliny—Judgment of Cuvier on the same Subject—Brief Account of the Historia Naturalis, including Extracts respecting the Wolf, the Lion, and other Animals—Cleopatra's Pearls—History of a Raven—Domestic Fowls—General Remarks, 74

Conrad Gesner—Account of his Life and Writings, preceded by Remarks on those of Ælian, Oppian, Albertus Magnus, Paolo Giovio, and Hieronymus Bock—Pierre Belon—Hippolito Salviani—Guillaume Rondelet—Ulysses Aldrovandi—General Remarks on their Writings, and the State of Science at the Close of the Sixteenth Century, 102

Brief Account of the Lives and Writings of John Jonston, John Goedart, Francis Redi, and John Swammerdam—Notice respecting the principal Works of Swammerdam—His Birth and Education—He studies Medicine, but addicts himself chiefly to the Examination of Insects—Goes to France, where he forms an Acquaintance with Thevenot—Returns to Amsterdam, takes his Degree, improves the Art of making Anatomical Preparations—Publishes various Works—Destroys his Health by the Intensity of his Application—Becomes deeply impressed with religious Ideas—Adopts the Opinions of Antoinette Bourignon—Is tortured by conflicting Passions—Endeavours to dispose of his Collections—Is affected with Ague and Anasarca, and dies after protracted Suffering—His Writings published by Boerhaave—His Classification of Insects, 118

Birth and Parentage of Ray—He receives the Rudiments of his Education at Braintree School—At the age of Sixteen enters at Katherine Hall, Cambridge—Removes to Trinity College, where he passes through various Gradations, and becomes a Fellow—Publishes his Catalogue of Cambridge Plants, and undertakes several Journeys—Extracts from his Itineraries—Resigns his Fellowship—Becomes a Member of the Royal Society—Publishes his Catalogue of English Plants, &c.—Death of his most intimate Friend, Mr Willughby—Character of that Gentleman—Mr Ray undertakes the Education of his Sons, and writes a Vocabulary for their Use—Notice of Dr Lister—Several Works published by Mr Ray, who improves and edits Willughby's Notes on Birds and Fishes—Continues his scientific Labours—Remarks on the Scoter and Barnacle—Letters of Dr Robinson and Sir Hans Sloane—Notice respecting the latter—Publication of the Synopsis of British Plants, the Wisdom of God manifested in the Works of Creation, &c.—Estimate of the Number of Animals and Plants known—Synopsis of Quadrupeds and Serpents—Classification of Animals—Various Publications—Ray's Decline—His last Letter—His Ideas of a Future State, and of the Use of the Study of Nature—His Death, Character, and principal Writings, 136

Birth and Education of Reaumur—He settles at Paris, where he is introduced to the Scientific World by the President Henault, and becomes a Member of the Academy of Sciences—His Labours for the Improvement of the Arts—His Works on Natural History, of which the Memoirs on Insects are the most important—His Occupations and Mode of Life, 183

Birth and Parentage of Linnæus—He is destined for the Clerical Profession—His early Fondness for Plants—He is sent to School, where his Progress is so slow that his Father resolves to make him a Shoemaker—Is rescued from this Fate by Dr Rothmann, who receives him into his Family—He becomes decidedly attached to the Study of Nature, enters the University of Lund, and is patronised by Professor Stobæus—When on an Excursion is attacked by a dangerous Malady—Stobæus surprises him in his nocturnal Studies—He goes to Upsal—Is reduced to extreme Poverty, from which he is relieved by Professor Celsius, whom he assists—Is next patronised by Rudbeck, and delegated to read his Lectures—Forms a Friendship with Artedi, 193

Linnæus, chosen by the Royal Society of Upsal to travel in Lapland, sets out in May 1732—Enters Lycksele Lapland—A