The next classification was that of Linnæus. His service to Anthropology by fixing the place of _Homo sapiens_ in the animal kingdom has already been noted (p. 19). In the first edition of the _Systema naturæ_ (1735),[66] Man is classed as a quadruped, and together with the Ape and Sloth constitutes the order _Anthropomorpha_. Four varieties of Homo are recorded: _H. Europæus albesc._, _Americanus rubesc._, _Asiaticus fuscus_, _Africanus nigr._ In the second edition (1740) _Homo_ is divided into the same four varieties, which are distinguished by the colour of their skin, located severally, one in each of the then known continents—_Europæus albus_, _Americanus rubescens_, _Asiaticus fuscus_, and _Africanus niger_. Footnote 66: These accounts have been taken from the original editions; but the reader is referred to the verbatim copy given by Bendyshe in the _Mem. Anth. Soc._, I., 1865, p. 421. In the tenth edition (1758) more divisions are recognised: the genus Homo consists of two species—Sapiens, 1 H. diurnus. _Ferus_, including hairy men without speech who run about on all-fours, of which six records are given; _Americanus_ (α) and _Europæus_ (β), _Asiaticus_ (γ), _Afer_ (δ), _Monstrosus_ (ε), which include (_a_) _Alpini_ (small), _Patagonici_ (large); (_b_) _Monorchides_—Hottentotti, _Junceæ_—Europæ; (_c_) _Macrocephali_—Chinenses, _Plagiocephali_—Canadenses. A second species being Troglodytes 2. H. nocturnus (Homo sylvestris Orang-Outang). This classification was retained in the twelfth edition (1772). In these two latter editions the genera Simia, Lemur, and Vespertilio were classed with Homo in the order Primates. In _Fauna Suecica_, published in 1746, Linnæus made a more detailed classification of the population of Sweden, recognising three main types, distinguished by their stature, hair, and eye colour. These were the Goths, tall, hair white and straight, iris of the eyes ashen blue; Finns, with muscular body, hair long and yellow, and dark iris; and Lapps, with small, thin body, straight black hair, and iris blackish. [Sidenote: =Blumenbach.=] Blumenbach (1775) based his classification not only on skin colour, but also on skull form. To the four groups of Linnæus he added a fifth, dividing the one species into five varieties—the Caucasian, the Mongolian, the Ethiopian, the American, and the Malayan. The last group included the then little known Australian, Papuan, and pure Malay types.