A mere index hunter, who held the eel of science by the tail. Index-hunter is a term used mockingly, meaning one who acquires superficial knowledge merely by consulting indexes. The '[holding] the eel of science by the tail' allusion was used in 1728 by Alexander Pope (q.v.).
Tobias SmollettThe Highlanders regale themselves with whisky. They find it an excellent preservation against the winter cold. It is given with great success to the infants in the confluent smallpox.
Tobias SmollettI find that the old Roman baths of this quarter, were found covered by an old burying ground, belonging to the Abbey; through which, in all probability, the water drains in its passage; so that as we drink the decoction of the living bodies at the Pump-room, we swallow the strainings of rotten bones and carcasses at the private bath - I vow to God, the very idea turns my stomach!
Tobias Smollett