The winkler waded into the tidal pools at dawn to harvest periwinkles for the morning market.

The Winklers invited us to their annual summer picnic in the countryside.

The winklers at the reunion reminisced about their childhood summers by the lake.

Winkler volunteered to lead the neighborhood clean-up on Saturday.

Winkler County's annual fair drew visitors from surrounding towns to Kermit this summer.

Before starting the Winkler bottle titration, the field technician rinsed the sample bottle with river water to avoid contamination.

To measure dissolved oxygen accurately, the lab technician performed a Winkler test on the river water sample, allowing manganese to form a precipitate for the titration.

The research team carefully rinsed the Winkler bottles before collecting the lake samples.