Darwin was assisted by Syms Covington in preserving specimens and his collecting was so successful that with FitzRoy's agreement he took on Covington as a full-time servant for £30 a year.
Darwin era axudado por Syms Covington na conservación dos espécimes e a súa recolección foi tan exitosa que, co acordo de FitzRoy, tomou Covington como servente a tempo completo cun salario de 30 libras ao ano.