When writing The Arachnid, Fernand Deligny (1903-1996) has been a teacher in special schools receiving maladjusted children of the peripheries of Paris, has already "educated" also in the psychiatric hospital in Lille Armentieres and then where requisitioning abandoned buildings during the 2nd War and weapon a network of mutual aid between workers, criminals and members of the Resistance, he has already been invited by Jean Oury and Felix Guattari clinic La Borde and is gone, uncomfortable with groups, diagnosis , and psychoanalysis, and 15 years is the benchmark for a web host of autistic children in a rural area of ​​the Cevennes ago. Insists said "poet and ethologist". In which there is no preciousness, but a necessary alliance explore autism requires universal entente face language and the human figure.

Under this logo is written The Arachnid, a poetic essay in his wanderings in philosophy, biology, history, and autobiography, is gobbling up the plot of the human figure (the awareness of being, the will to the project thought, freedom), to go basting lines of a human mode of being thrown out of history but persistent: spidery networks are welcome, spy networks, and dissidents, the lines of the hand and the " wandering lines "of autistic children, arachnids are traces of children's hands and aborigines.

Arachnid it is accompanied by photographs, reproductions of maps of the "wandering lines" and a collection of short essays from the same period in which various subjects (parties, war, sex, intellectuals, etc. ) they are always approached from that place there, the closeness with autistic children, indicating the limits for a treatment of autism from "good intentions", the legal-political discourse, particularly psychoanalysis.