1 Subjects: “...Secret agents...”

2 “...This volume deals with the 'hidden secrets of nature' in the natural magic of Giovan Battista Della...”

3 “... of the contemporary subject, its "passivity” and the secret of its survival....”

4 “...-to-reach secrets inspire fascination, birds, as inhabitants of the air, are perceived as ghostly creatures...”

5 “.... The secret lies in the pen of a light-handed writer, a scientist-poet who is a school man...”