locating Skippy's® primary
Should probably give that some sort of designation. Also why would you use a registered mark in a document like this?
already taken by the Foundation
Kind of awkward wording. Sort of implies a weird perspective.
to Level 2 personnel or higher
Why bother noting this?
to cardboard boxes, marked as Skippy's™
Should reword/reorder this, it sounds weird.
Also, why include a trademark symbol? Shouldn't they have some group designation
The second sentence of the description could be wrapped into the first by just including the number of boxes int he first place.
used to label all the quoted above
This is awkwardly worded and doesn't really make sense.
box has exactly nine hundred and ninety-nine (999)
'has' is bad wording. 'contains' or something would be better.
If you're going to say an exact number, just say the exact number. Don't tell the reader it's exact.
That first footnote is written really awkwardly.
boxes have an absence of certain
Again, just awkward phrasing. Something like 'do not contain' would be better.
contained have an anomalous property in general
Again. Something like 'possess any anomalous properties'.
The anomalous effects […] The anomalous effects […]
Awkward repetition here.