src: In Portugal, they experimented with the use of blast furnaces at Ferraria de Foz d’Alge, but there they could call on the experience of Prussian metallurgists, among them the young Eschwege, along with the German Frederico Varnhagen, who was sent to Brazil to help Martim Francisco in his work.
tgt: Em Portugal ensaiaram o uso de altos-fornos na Ferraria de Foz d’Alge, mas contavam com a experiência de metalúrgicos prussianos, entre os quais os jovens Eschwege e Frederico Varnhagen, que foi enviado ao Brasil para ajudar o trabalho de Martim Francisco.