Yes, indeed, and exactly how... is the substantial revision made? In any case, I remember going-round with you on ideas Vertin might have had about movement between levels, but why does this elevating change need a fuller systematic account if that account only means we need 5 rather than 4 levels (the scientific world being, of course, stuck in three)? Well, I'll need to read-on. At least now I recognize a difference between *habitus entitativus* and *habitus operativus*. Thanks, and open-source forever!
