Calculations on "Schwinger, quantization in Dirac's theory".

Calculations on invariant derivation of Klein-Nishina's formula.

Schafroth's questions.

Calculations.

Calculations on the theorem of reciprocity.

Calculations on regularization.

Calculations, probably linked with Eliezer's theory.

Calculations on thermodynamics of a chemical reaction.

Calculations on space and time reversal.