Introduction: towards a history of the present
Child monstrosity and the dilemma of nature
The monster, the modest girl, and the masturbating boy
Accounting for the mature-immature body
From the world of the naturalists to the first population studies
The biosocial reconfigured: puberty onset and the emergence of epidemiological risk
A most dangerous condition: puberty science and the surveillance of all
Anthropometric and molecular surveillance: the birth of the "normal" pubertal body (and its dilemmas)
Conclusion: not so fast!