I decided to make a new one. I had noticed we still had the forams the students had picked the year before; I could harvest these for that purpose. So when the marking was mostly done I went back to the lab. I hadn't seen forams for a while! It was nice to re-acquaint myself. And the more rarely encountered forams I had to forget about; I figured the original reference collection was based on quite a number of years of the field trip. But I have the most common types! And of the more abundant forams I made sure to make three slides each, so three students can look at that species at the same time. Of some species I only managed one or two. And if the students find more of the rarer species I can make a few more slides there and then. I don't know if this exercise will be kept going in the long run, but well, a reference collection is a joy forever. Might even take it with me if I have to go!
Work in progress
What I'll make do with during the field trip (there are forams in there, honest)