Subject ASC0000edf

The Intellectual observer.
v.11 (1867), (1867)
Harvard University, MCZ, Ernst Mayr Library
BHL Page 39544370

Keywords

shutter sun camera photography photograph projection light portable aperture telescope astronomy diagram of apparatus Solar observation box sun observation box 1867 sun viewing recording sun observations solar observation box diagram Intellectual observer darkening shutter screen projection The Intellectual Observer heliophotography solar viewer shutter scheme viewing screen Shutters Darkening Shutters

Contributors

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"Harvard University, MCZ, Ernst Mayr Library"

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"Harvard University, Museum of Comparative Zoology, Ernst Mayr Library"

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year

"1867"

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volume

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