Dee ihe na-aga n'ihu maka paragraf a - N'ịbụ onye e buliri elu na Disemba 31, 1830, ọ banyere n'ụgbọ mmiri "Du Couëdic" nke ya na ya sonyere na mmeri French nke Algeria
ebe ọ zutere Ensign Gaston de Roquemaurel, onye ga-abụ osote onye isi nke "Astrolabe". N'afọ 1832, ọ banyere ụgbọ mmiri a na-akpọ "Isis".