TY - BOOK TI - L'Écho du monde savant et l'Hermès : journal analytique des nouvelles et des cours scientifiques VL - 1840 pt.1 (1840) UR - https://www.biodiversitylibrary.org/item/180982 CY - Paris PY - 1840 N1 - British Library have some volumes of the same series with an earlier start date of 1836. BL shelfmarks PP 4285 and PP 4292. ER -