Definitions for "Field notes"
Reports about things, people, or conversations being studied in the everyday world, not in a lab or other situation set up by the researcher. The everyday world is the “field.
Written observations on all significant characteristics of an excavated level.
The notes an archaeologist takes while digging to keep track of finds and changes in level. Notes follow a certain format so that other Archeologists, perhaps years later, may also get use out of them.