 At the place of arrival the films were unrolled and then enlarged by the help of a magic lantern ; a number of writers thereupon set to work to copy the enlarged despatches, and ultimately forwarded them to their respective addresses. Thus Paris corresponded,...  The Chemistry of Light and Photography - Página 212por Hermann Wilhelm Vogel - 1875 - 288 páginasVista completa - Acerca de este libro
 | Hermann Wilhelm Vogel - 1883 - 352 páginas
...contained in some cases as many as 1500 despatches. At the place of arrival the films were unrolled and then enlarged by the help of a magic lantern ;...by the aid of photography, for six months with the outer world, and even poor persons were able to let their relatives know that they still lived. SECTION... | |
 | Albert Edward Garrett - 1911 - 490 páginas
...addresses. Thus Paris corresponded, by the aid of photography, for six months with the outer world, and even poor persons were able to let their relatives know that they still lived. Pyro-Photography. — An ordinary photograph is, as paper, very combustible, and exposed to injury... | |
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