Letter 42 of July 25, 1684 Figures 1 and 2 | Opera Omnia

Figure 1

The seven annual contours of a scale from the belly of a large eel.

De seven jaarlijke ommetrekken van een schobbe vande buijk van een groote paling.

Figure 2

Same scale of a big eel as large as it appears to our naked eye.

Deselve paling schobbe soo groot als die in ons bloote oog vertoont.

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Letter of: 
July 25, 1684
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