He was educated privately and was so precocious a boy as to translate a Latin version of the Battle of the Frogs and Mice into French in 1796, which was published by his father in 1797.
Was in every respect precocious; but from the first there was what we should now call a neurotic strain in his character.
The precocious lad quickly mastered the German, Latin and principal Slavonic languages, frequently acting as his father's interpreter at the reception of ambassadors.
Hence the entocodon represents a precocious formation of the sub-umbral surface, equivalent to the peristome of the polyp, differentiated in the bud prior to other portions of the organism which must be regarded as antecedent to it in phylogeny.
To sum up, the entocodon is a precocious formation of the umbrella, closing over to protect the organs in the umbrellar cavity.