![](http://www.alamy.com/thumbs/6/7097D4C1-3CB8-4B58-8666-696D2EE4A602/2AX7CKD.jpg)
The Action of Plants on a Photographic Plate in the Dark . 4- /-l-irt- * ? i- MM-- I- •>. * • 1 c* * ?? ? . ~ -. *.
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Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
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Keywords: ., bookcentury1900, bookdecade1900, bookidphiltrans062, bookyear1906