Paper Filter

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Paper filter used in chemistry experiments. The filter on the left is folded to fit into a funnel. The filter on the right is fluted.


Youmans, Edward L. A Class-book of Chemistry (New York, NY: D. Appleton and Co., 1864) 45


TIFF (full resolution)

3154×1291, 719.7 KiB

Large GIF

1024×419, 136.0 KiB

Medium GIF

640×261, 68.6 KiB

Small GIF

320×130, 23.9 KiB