Translations for congratulate in French

Here are paragraphs from public domain books translated:

" 'Then, good-bye, Mr. Jabez Wilson, and let me congratulate you once more on the important position which you have been fortunate enough to gain.' He bowed me out of the room, and I went home with my assistant, hardly knowing what to say or do, I was so pleased at my own good fortune.	— Alors, au revoir ! monsieur Jabez Wilson, et permettez-moi de vous féliciter encore de la position importante que vous avez eu le bonheur d’obtenir. Il me donna congé et je rentrai avec mon employé, la tête absolument perdue par cette bonne aubaine.
The Adventures of Sherlock Holmes, by Arthur Conan Doyle	Les Aventures de Sherlock Holmes, de Arthur Conan Doyle

"Eureka!" he cried, his teeth shining through his beard. "Gentlemen, you may congratulate me and we may congratulate each other. The problem is solved."	— Eurêka ! s’écria-t-il, et toutes ses dents brillèrent sous sa barbe. Vous pouvez me féliciter, messieurs, et nous pouvons nous féliciter les uns les autres. J’ai résolu le problème !
The Lost World, by Arthur Conan Doyle	Le Monde perdu, de Arthur Conan Doyle