(1) Concubitant relations who have married together. These we found to be on inquiry in nearly every case actual first cousins. They formed 29·7 per cent. of the total number of families. (2) Relations other than concubitant cousins who have intermarried. Two-fifths of these are near relations, uncle and niece, and non-marriageable cousins-german, brother and sister according to the Fijian ideas. But the remaining three-fifths are more distantly related than are the concubitants. These form 12·3 per cent. of the total number of families. (3) Fellow villagers--natives of the same village, but not otherwise related--who have married together. These form 32·1 of the total number of families. (4) Natives of different villages, not being relations who have intermarried. These form 25·9 of the total number of families. Thus it will be seen that the concubitant and other relations who have intermarried number over two-fifths of the people, while one-third of the married people have been brought up together in the same village, and only one-fourth, not being relations, have come from different villages. When we examined the relative fecundity of these divisions the result was not a little startling-- 133 concubitant couples have had 438 children, or 3·30 children per family. 55 families of relations have had 168 children, or 3·06 children per family. 144 families of fellow-villagers have had 390 children, or 2·71 children per family. 116 families of natives of different villages have had 321 children, or 2·77 children per family. It will thus be seen that as regards fecundity, concubitant marriages are greatly superior to any of the other classes. But since fecundity does not necessarily mean vitality, the question is, how many of the children born to these respective divisions have survived? and we find the unexpected result that whereas the other classes have changed places, the concubitants again show themselves to be superior. Of 133 families of concubitants, there were 438 children, of whom 232 survive, and 206 are dead. Of 55 families of relations, not concubitants, there were 168 children, of whom 72 survive, and 96 are dead. Of 144 families of townspeople, there were 390 children, of whom 212 survive, and 178 are dead. Of 116 families of natives of different villages, there were 321 children, of whom 163 survive, and 158 are dead. [Pageheader: VITALITY OF INBRED CHILDREN] The concubitants with an average surviving family of 1·74 show, therefore, not only a higher birth-rate, but far the highest vitality of offspring. The relations other than concubitants show, it is true, the highest fecundity next to the concubitants, but their rate of vitality is the lowest of the four classes, since more of their children have died than are now living. Second in point of vitality come the fellow-villagers, but they are far behind the concubitants.