<P> Schleiden 's theory of free cell formation through crystallization was refuted in the 1850s by Robert Remak , Rudolf Virchow , and Albert Kolliker . In 1855 , Rudolf Virchow added the third tenet to cell theory . In Latin , this tenet states Omnis cellula e cellula . This translated to : </P>
<P> Schleiden 's theory of free cell formation through crystallization was refuted in the 1850s by Robert Remak , Rudolf Virchow , and Albert Kolliker . In 1855 , Rudolf Virchow added the third tenet to cell theory . In Latin , this tenet states Omnis cellula e cellula . This translated to : </P>
the idea that all living cells come from preexisting living cells was proposed by
the idea that all living cells come from preexisting living cells was proposed by
Rudolf Virchow
Rudolf Virchow