1.   It is possible that a data collection schedule contains but one instrument.

2.   Small lakes contain but one kind of fish, of intermediate form.

3.   But one aspect which is new springs from the advances which have been made in molecular biology.

4.   But one unknowable to ordinary people.

5.   There is but one small snag.

6.   No, since there was but one way in, by that way he must go.

7.   America Online offered but one recent example.

8.   And it took but one mayoral snip for the Boston Irish Famine Memorial, seven years in the planning, to enter the construction phase.

9.   At my office, my mail consists almost exclusively of policy memorandums and pamphlets from institutions to whom I am but one name on an enormous mailing list.

10.   At the hotel construction site at the corner, the hardhats had expropriated all but one lane.