310 A learned German professor has thought it worth while to break the poor butterfly argument on the wheel of his inflexible logic. The cruel act, while it proves the hardness of the professor’s head, says little for his knowledge of human nature, which does not always act in strict accordance with the impulse of the syllogistic machinery. See Erwin Rohde, _Psyche_3 (Tübingen and Leipsic, 1903), i. 290 _sqq._ 311 1 Corinthians xv. 35 _sqq._ M67 Games played as magical ceremonies to promote the growth of the crops. The Kayans of central Borneo, a primitive agricultural people. The sacred rice-fields (_luma lali_) on which all religious ceremonies requisite for agriculture are performed. 312 See above, p. 71, with the footnote 5. 313 See above, pp. 74 _sqq._ 314 A. W. Nieuwenhuis, _Quer durch Borneo_ (Leyden, 1904-1907), i. 156 _sq._ M68 Ceremonies observed at the sowing festival. Taboos observed at the sowing festival. 315 A. W. Nieuwenhuis, _op. cit._ i. 164. 316 A. W. Nieuwenhuis, _Quer durch Borneo_, i. 164-167. 317 A. W. Nieuwenhuis, _op. cit._ i. 163. The motive assigned for the exclusion of strangers at the sowing festival applies equally to all religious rites. “In all religious observances,” says Dr. Nieuwenhuis, “the Kayans fear the presence of strangers, because these latter might frighten and annoy the spirits which are invoked.” On the periods of seclusion and quiet observed in connexion with agriculture by the Kayans of Sarawak, see W. H. Furness, _Home-life of Borneo Head-hunters_ (Philadelphia, 1902), pp. 160 _sqq._ M69 Games played at the sowing festival. Masquerade at the sowing festival. 318 A. W. Nieuwenhuis, _op. cit._ i. 167-169. M70 Rites at hoeing. 319 A. W. Nieuwenhuis, _op. cit._ i. 169. M71 The Kayan New Year festival. Offerings and addresses to the spirits. Sacrifice of pigs. 320 A. W. Nieuwenhuis, _Quer durch Borneo_, i. 171-182. M72 Dr. Nieuwenhuis on the games played by the Kayans in connexion with agriculture. 321 A. W. Nieuwenhuis, _op. cit._ i. 169 _sq._ M73 Serious religious or magical significance of the games. 322 A. W. Nieuwenhuis, _op. cit._ i. 163 _sq._ 323 A. W. Nieuwenhuis, _Quer durch Borneo_, ii. 130 _sq._ The game as to the religious significance of which Dr. Nieuwenhuis has no doubt is the masquerade performed by the Kayans of the Mahakam river, where disguised men personate spirits and pretend to draw home the souls of the rice from the far countries to which they may have wandered. See below, pp. 186 _sq._ M74 The Kai, an agricultural people of German New Guinea. Superstitious practices observed by the Kai for the good of the crops.