1 The use of the electron microscope has advanced our understanding of cell biology further ... In the early 1930's this limit had been reached and there was a scientific desire to see the fine details of the interior structures of organic cells (nucleus, mitochondria, inside the nucleus itself, nucleolus).
MaxQ Tall Fescue Grass - Safe For Horse Pastures & Hay. Fescue toxicity has long been an issue for horses, sheep and cattle. Endophyte-free varieties of Tall Fescue Grass were developed, but they suffered from reduced plant hardiness and survival.
If it is to be used for animal bedding, it needs to be coarse, without a lot of fine dust. Chips from jointers and planers are good, but sanding dust is just as bad for horses as it is for us. Unless it's full of chemicals, compost it. I've heard that there are some wood's sawdust that is rather bad for the horses.