Hola Eduardo,
Thanks for the photos of the UNAM library. I already noticed an interest in science (history, geography, philosophy?), but I didn’t know you are so closely connected to the university. What a coincidence I started my slide show with that building two weeks ago. What is it that are you doing at the university?
This may mean that you still use the nearby Copilco station often. Where you worked at the paintings. I can imagine you and the others had to perform some acrobatic feats when balancing with your dish of paint on the scaffolding, now you describe this. :-0 Eeek! No Jackson-Pollock-s on the floor? 
I know Mexico is lying in the Ring of Fire that goes around the Pacific Ocean, one of the main two belts of active volcanoes on earth. About a week ago I saw an episode of a television documentary series, which is very interesting. In this series a ship with scientists, writers and artists aboard sails the same voyage as Darwin did aboard the Beagle two centuries ago. The clipper calls at every port the Beagle did during that 5 years journey around our globe that completely changed our view of the world. In the episode of last week the ship stopped in Valparaiso, Chile –also in this Ring of Fire- where Darwin experienced a heavy earthquake and where he made an expedition into the Andes. To discover stoned trees up the mountains and layers with fossils of organisms that once must have lived on ocean floor. And Darwin was struck by the rich diversity in colour of the stones he found during his trip in this volcanic area.
The close-ups you sent me seem to fit to what I saw and heard in that program: the richness in colours of the stones used by O’Gorman that come from all over your quite volcanic country. (As kids we grew up with the funny Popocatepetl-song.) Also your photos seem to come at just the right moment. In this stage I am thinking about using colour in my work for WGA. I thought about using the colours of the slide I uploaded some time ago: the photo I took from the plane with the patches of the coloured houses. But seeing your photos I want to use the colours O’Gorman used, the colours of the soil. There is a connection between us humans and our soil. People who have died flown back to their countries of origin to get buried in home soil.
A great thing of the UNAM building is, that it depicts your history in your own soil, and also the progression of science. Our changing views upon the word as we know it. Our universe. A few days ago I realized for the first time the common root of the words: universe, universal and university. The place where students and professors gather and examine our world. By using the same colours as O’Gorman did in the murals -stone by stone by stone-, I use Mexican colours, but at the same time natural colours in general. And that’s exactly what my necklace has to do: Mexican and also (part of the) universal.
Eduardo, can I ask you a favour please? Would it be possible to make some more close up photos of the library murals? The slides I took myself ten years ago are not that close as the ones you sent me yesterday. I would like to have a better overview of the colours O’Gorman used. I hope you can do this for me. And note: if you need something I can get you here, let me know that as well please. I can send you the stuff you may need or make photographs for you, record something. Whatever you need!
Here some photos I took this morning. It was snowing again. What’s wrong with winter? We’re not supposed to get that much snow here! Here the tracks of some birds: the ones of the home ground pigeon look like little airplanes on their routes. And note that heavy track in the left down corner of the second image: the biggest, most migratory bird of them all. 
Wish you well and till soon, Peter
