Comptes rendus des travaux du comité international chargé des essais électriques / Comité International
Les chaux et ciments : les produits céramiques / E. D'Hubert
Estudo, trabalho e diversões / Neil Ardley
Philips' centenary handy general atlas of the world : a series of 232 pages of coloured maps and plans forming a complete geographical survey of the international relationships of the new era, its territorial changes and commercial communications, with an index of over 116,000 names / George Philip