Spontaneous language samples were recorded fortnightly for about 45 minutes per session.
His son lives an hour's drive away, and while he sees him perhaps fortnightly, they speak on the phone about twice a week.
Throughout this period the weevils outside the cages were sampled fortnightly and assessed for parasitism by dissection (see below).
The herbage around each pat was sampled fortnightly over a period of 2 months and the number of infective larvae was recorded.
Guidance sessions were weekly for the first 4 weeks, fortnightly for the following 6 weeks and then every 3 weeks for the remaining 6 weeks.
These were made fortnightly and only with the experimental group.
The present results suggest that these dates should be at fortnightly intervals starting six months after planting.
As far as possible, collections were made fortnightly, choosing windless and rainless days.
