Who actually invented the plate called Petri dish? Julius Richard Petri, Emanuel Klein or Percy Frankland ? Nobody knows exactly. Whether it was a case of technological evolution or whether Klein and Frankland were robbed of their proper place in science history by a more famous laboratory (Petri worked for the renowned German scientist Robert Koch), we will probably never know.
I sketched some of the creatures living in the soil. I put them in the Petri dish and I gave all of them a name: Proboscisus giganteus, Centipedesus soili, Scotomaeus blindi and Rostrumiana oviparous.