Note (return) — ORGANIC DIFFERENCES IN THE SEXES
Reading edition
According to Yung, tadpoles pass through an hermaphroditic stage, in common, according to other authorities, with most animals.... When the tadpoles were left to themselves, the females were rather in the majority. In three lots the proportion of females to males was: 54-46, 61-39, 56-44. The average number of females was thus about fifty-seven in the hundred. In the first brood, by feeding one set with beef, Yung raised the percentage of females from 54 to 78: in the second, with fish, the percentage rose from 61 to 81; while in the third set, when the especially nutritious flesh of frogs was supplied, the percentage rose from 56 to 92. That is to say, in the last case the result of high feeding was that there were 92 females and 8 males.11