The dissecting microscope, Kalip has been using to examine Simulium flies for filarial infections, has been the oldest in our lab: It was bought in 1976 and shipped to Cameroon directly from Switzerland. For 35 years, the microscope has served in the humid rain-forest and dusty savannah. Its mechanical parts are still looking very fine, but the optics suffered from heavy fungal infections. We were happy to have received a second-hand M5 dissection microscope, of the same age, but with clean optics for very little money. Mr Schneider, the skillfull mechanics of our Zoological Institute in Tübingen, replaced one missing screw. It shall now serve for many years to come!