Die Eisenbahnen im tropischen Afrika : eine kolonialwirtschaftliche Studie
The Soudan railroad from the Red Sea to the Nile
The Otavi narrow-gauge railway in German south-west Africa
The working of the railways in the south African war
Railways in the German colonies
The Luderitzbucht-keetmanshoop railway in German southwest Africa
South African railway operations in 1914
Shipwreck of the great ship Santo Alberto and itinerary of the people who were saved from it
Treatise of the misfortune that befell the great ship Sao Joao Baptista...
Africar : The development of a car for africa
Politique de sante: Vues d'Afrique