Which preposition to use with firedrakes

in Occurrences 1%

When our shipps Carrying such firedrakes in them that the huge Spanish Galleasses, Galleons, Hulkes and Carrackes Being great with gold, in labour with some fright, Were all delivered of fine redcheekt Children At Plymouth, Portsmouth and other English havens And onely by men midwives: had not Spayne reason To cry out, oh Diables Ingleses!

Which preposition to use with  firedrakes