1.   Decisions about its value are therefore based on indirect evidence.

2.   Indirect evidence of mounting demographic pressure is also provided by the steady destruction of the forests.

3.   Moreover, language change offers important indirect evidence about the nature of human language namely, that it is rule-governed.

4.   The added price of inconvenience is hard to measure and must be inferred from indirect evidence.

5.   They do not in themselves betoken infection, although they can be taken as indirect evidence of infection in many cases.

6.   The cigarette stubs were indirect evidence that someone had been smoking in the room.

7.   Such appeals, fairly consistently spread over the twenty-seven years of her subsequent married life, constitute indirect evidence of an untroubled personal relationship with Charles.

8.   The findings presented here can provide only indirect evidence about any possible adverse effect of cimetidine on motor neurone disease.