1837 Oct. 328 His deductions are of the utmost importance, but they are so only when in the hands, and under the guidance, of the field Geologist.
1901 Mar. 516 With such a map the field geologist can begin intelligently his geological work.
1997 22 July i. 18/1 The high-school kid got a summer job as an apprentice lapidary, cutting and polishing stones; he was by then an accomplished field geologist.