Translations for main in French

Here are paragraphs from public domain books translated:

"Oh, he has his faults, too," said Mr. Wilson. "Never was such a fellow for photography. Snapping away with a camera when he ought to be improving his mind, and then diving down into the cellar like a rabbit into its hole to develope his pictures. That is his main fault; but, on the whole, he's a good worker. There's no vice in him."	— Mon Dieu ! il a ses défauts aussi, dit M. Wilson. Je n’ai jamais vu la passion de la photographie poussée plus loin que chez lui. S’esquivant avec un appareil aux heures où il devrait travailler, il descend au fond de la cave, comme un lapin qui se terre, pour développer ses plaques. Voilà son principal défaut. En dehors de cela c’est un bon travailleur, et il n’a pas la moindre malice.
The Adventures of Sherlock Holmes, by Arthur Conan Doyle	Les Aventures de Sherlock Holmes, de Arthur Conan Doyle