Top Level Results on Load

I am trying to fully understand the environment settings with one of my LISP programs. I have the Diagnostics set to "Print Top Level Results on Load" and each time I load the active window the LISP console comes up and lists all the functions which get loaded. There are a total of 37 of them in one of my programs and in the listing in the console there are two line items which look like this:

nil

#

These two are different from all the rest and I don't recall seeing these in the earlier stages of development so I'm concerned that I may have fat-fingered something into the code or have something which may be troublesome later when debugging. Can anyone explain what these two entries mean?