Wrote Letter L-497 of 1713-06-30 to Anthonie Heinsius about the composition of crabs’ eyes and lobster and crab shells, ring-shaped structures in lobster pincer shell, compared to annual rings of woody vegetation, and the lobster's muscle fiber membrane
Date:
June 30, 1713
Chemical experiments for the investigation of the composition of crabs’ eyes and of the shell of lobsters and crabs. L. discovers ring-shaped structures in the shell of a lobster's pincer, which he compares to the annual rings of woody vegetation. Muscle fibres of a lobster are wrapped up by a membrane, too
