The experiment of Madeleine Bastide consists in exposing chicken eggs in incubation to the radiation of a mobile phone, and to compare the mortality of exposed eggs to that of sham eggs. The dosimetry in laboratory of this experiment comprises two parts, the measurements of the radio frequency electric field and the low frequency magnetic field at the eggs locations. The space resolution necessary to these measurements imposes the use of a dosimetric probe for the radio frequency electric field and of a specific sensor for the low frequency magnetic induction. The values of field obtained for various eggs according to their position compared to the mobile phone made it possible to test a possible correlation with their mortality.