Browne started collecting from an early age. As a boy he gathered medicinal herbs in fields near the College. He later amassed a large collection of insects and animals, including boxes of deathwatches (a species of woodboring beetle). Browne did not publish any experiments on beetles but he did investigate other insects, such as worms, spiders, and earwigs.
From left to right: Stag beetle, Cockchafer, Earth-boring scarab beetle, Rose chafer, and Eurasian bee beetle.