Which preposition to use with dabbler

in Occurrences 11%

A scheming drug-vendor, (inventive genius,) an utterly untrustworthy and incompetent observer, (profound searcher of Nature,) a shallow dabbler in erudition, (sagacious scholar,) started the monstrous fiction (founded the immortal system) of Homeopathy.

of Occurrences 1%

The earliest dabbler of the genus, as a contemporary writer observes, is said to be Zoroaster, thought to be the king of the Bactrians, who flourished about 3,800 years ago, or A.M. 2000.

Which preposition to use with  dabbler