| The areolae on the valve are usually too small to be distinguishable with the light microscope. |
| Instead, the abundance of leaf hairs on leaf surfaces or veins was scored for each sample under a light microscope. |
| Several difficulties arise from using a conventional light microscope for polarimetric studies. |
| The mucus trails were protected with coverslips and observed under a light microscope. |
| The cuticle of juvenile stages is thin and weakly sclerotized, and sternal and tergal plates are barely recognizable in the light microscope. |
| In a third method the interaction between two large vesicles formed at the end of micropipettes and imaged by a light microscope is determined. |
