Two archived electron micrographs from experiments in the 1970s which were part of liquid ventilation studies by Leland Clark, Jr.  These images are from a mouse that liquid breathed E2 (this is the hooker, I cannot find in my records what the chemical name for E2 is/was, but it is not what is currently searchable in google — what comes to mind is di fluoro methyl ether?).  This a mouse (typically swiss albino) was submerged in perfluorocarbon  for 15 min and tissues were taken at 0 min recovery.  Two micrographs of the dozen or so from this animal (I still have the Epon 812 blocks probably) and immediately I noticed two intravascular lymphocytes (probably medium size lymphocytes) making a quick pass by two platelets. One even has about 4 little surface folds reaching out to the lymphocyte.  I am not drawing any conclusions from two cells and two micrographs, but found it interesting, and would be highly surprised if something doesn’t point to this interaction, under some normal and experimental circumstances, as being significant.