Reading these records further will shed a bit more light on what these reports are about - there's definitely a lot of mentions of lyrium, for one. Most of these reports will have a format such as this:



The notes themselves has references to how people react to lyrium, how they are each day, how they respond to 'the study' and some random musings by whoever writes these reports (on some there is, for some reason, doodles of a cartoony heart). The circled portions on the human outlines tend to be on areas where the major organs are - something that Hermione may be able to pick up on since she's actually from a time where modern medicine is around.

The most important thing however is that at the end of each report, there's a final word tacked: either 'SUCCESS' or 'FAILURE'.