Here's a Laurel and Hardy film you probably haven't seen. It was made in 1943 for the United States Department of Agriculture and The Boys shot it over their lunch hour during the time they were making films on the Twentieth-Century Fox lot. In fact, last time I was over in that part of the backlot — must be fifteen, twenty years ago — that street area looked pretty much the same as it does in this film.
This short is called The Tree in a Test Tube and this is the first half of it, which runs around five and a half minutes. The rest, which you don't want to see, is more boring educational stuff and doesn't involve Stan and Ollie. The voiceover is by a gent named Pete Smith, who produced and narrated comedy short subjects for MGM for more than twenty years.
The most interesting thing about this film, apart from the sheer fact that it's obscure Laurel and Hardy, is that it was shot in color. In their long careers, Stan and Oliver only made two films that were shot in color and the other one, the 1930 feature The Rogue Song, is largely lost today. So this is pretty much it for Laurel and Hardy in color. Have a look, why don'tcha?